- Announcing Privoxy 3.0.22 stable
+ Announcing Privoxy 3.0.31 stable
--------------------------------------------------------------------
-Privoxy 3.0.22 stable is mainly a bug-fix release, it also has a
-couple of new features, though. Note that the first two entries in
-the ChangeLog below refer to security issues.
+Privoxy 3.0.31 fixes two security issues that were discovered while
+preparing the 3.0.30 release. The issues also affect earlier Privoxy
+releases.
--------------------------------------------------------------------
-ChangeLog for Privoxy
+ChangeLog for Privoxy 3.0.31
--------------------------------------------------------------------
-*** Version 3.0.22 stable ***
+- Security/Reliability:
+ - Prevent an assertion from getting triggered by a crafted CGI request.
+ Commit 5bba5b89193fa. OVE-20210130-0001.
+ Reported by: Joshua Rogers (Opera)
+ - Fixed a memory leak when decompression fails "unexpectedly".
+ Commit f431d61740cc0. OVE-20210128-0001.
- Bug fixes:
- - Fixed a memory leak when rejecting client connections due to
- the socket limit being reached (CID 66382). This affected
- Privoxy 3.0.21 when compiled with IPv6 support (on most
- platforms this is the default).
- - Fixed an immediate-use-after-free bug (CID 66394) and two
- additional unconfirmed use-after-free complaints made by
- Coverity scan (CID 66391, CID 66376).
- - Actually show the FORCE_PREFIX value on the show-status page.
- - Properly deal with Keep-Alive headers with timeout= parameters
- If the timeout still can't be parsed, use the configured
- timeout instead of preventing the client from keeping the
- connection alive. Fixes #3615312/#870 reported by Bernard Guillot.
- - Not using any filter files no longer results in warning messages
- unless an action file is referencing header taggers or filters.
- Reported by Stefan Kurtz in #3614835.
- - Fixed a bug that prevented Privoxy from reusing some reusable
- connections. Two bit masks with different purpose unintentionally
- shared the same bit.
- - A couple of additional bugs were discovered by Coverity Scan.
- The fixes that are not expected to affect users are not explicitly
- mentioned here, for details please have a look at the CVS logs.
+ - Fixed detection of insufficient data for decompression.
+ Previously Privoxy could try to decompress a partly
+ uninitialized buffer.
+
+--------------------------------------------------------------------
+ChangeLog for Privoxy 3.0.30
+--------------------------------------------------------------------
+
+- Bug fixes:
+ - Check the actual URL for redirects when https inspecting requests.
+ Previously Privoxy would only check the path which resulted in
+ rewrite results being rejected as invalid URLs.
+ Reported by withoutname in #1736.
+ - Let the hide-referrer code tolerate Referer headers with https:// URLs.
+ Previously they would always be treated like a changed host.
+ - Use the https headers if the show-request handler is reached through
+ https://. Previously Privoxy would use the http headers which
+ may be empty on a reused connection.
+ - Make CGI_PREFIX protocol-relative when building with FEATURE_HTTPS_INSPECTION.
+ This unbreaks (at least) https://config.privoxy.org/client-tags whose
+ buttons would previously use a http:// URL resulting in browser warnings.
+ - Support using https-inspection and client-header-order at the same time.
+ Previously Privoxy would crash.
+ Reported by: Kai Raven
+ - Properly reject rewrites from http to https as they currently
+ aren't supported. Previously Privoxy would wait for the client
+ to establish an encrypted connection which obviously would not happen.
+ - When https inspection is enabled and Privoxy has been compiled with
+ FEATURE_GRACEFUL_TERMINATION (not recommended for production builds),
+ the TLS backend resources are free'd later on and only if no active
+ connections are left. Prevents crashes when exiting "gracefully" at the
+ wrong time.
+ - Let the uninstall target remove the config file even if DESTDIR
+ is set and properly announce the deletion of the configuration files.
- General improvements:
- - Introduced negative tag patterns NO-REQUEST-TAG and NO-RESPONSE-TAG.
- They apply if no matching tag is found after parsing client or
- server headers.
- - Add support for external filters which allow to process the
- response body with a script or program written in any language
- the platform supports. External filters are enabled with
- +external-filter{} after they have been defined in one of the
- filter files with a header line starting with "EXTERNAL-FILTER:".
- External filter support is experimental, not compiled by default
- and known not to work on all platforms.
- - Add support for the 'PATCH' method as defined in RFC5789.
- - Reject requests with unsupported Expect header values.
- Fixes a couple of Co-Advisor tests.
- - Normalize the HTTP-version in forwarded requests and responses.
- This is an explicit RFC 2616 MUST and RFC 7230 mandates that
- intermediaries send their own HTTP-version in forwarded
- messages.
- - Server 'Keep-Alive' headers are no longer forwarded. From a user's
- point of view it doesn't really matter, but RFC 2616 (obsolete)
- mandates that the header is removed and this fixes a Co-Advisor
- complaint.
- - Change declared template file encoding to UTF-8. The templates
- already used a subset of UTF-8 anyway and changing the declaration
- allows to properly display UTF-8 characters used in the action files.
- This change may require existing action files with ISO-8859-1
- characters that aren't valid UTF-8 to be converted to UTF-8.
- Requested by Sam Chen in #582.
- - Do not pass rejected keep-alive timeouts to the server. It might
- not have caused any problems (we know of), but doing the right
- thing shouldn't hurt either.
- - Let log_error() use its own buffer size #define to make changing
- the log buffer size slightly less inconvenient.
- - Turned single-threaded into a "proper" toggle directive with arguments.
- - CGI templates no longer enforce new windows for some links.
- - Remove an undocumented workaround ('HOST' header removal) for
- an Apple iTunes bug that according to #729900 got fixed in 2003.
+ - Allow to rewrite the request destination for https-inspected
+ requests behind the client's back. The documentation already sort
+ of claimed that it was supported by not especially mentioning that
+ it didn't work for https-inspected requests.
+ Fixes SF bug #923 reported by withoutname.
+ - Add support for filtering client request bodies by using
+ CLIENT-BODY-FILTER filters which can be enabled with the
+ client-body-filter action.
+ Patch submitted by Maxim Antonov.
+ Sponsored by: Robert Klemme
+ - Add the new action suppress-tag{} which can be used to prevent
+ a tagger from adding a tag. Patch submitted by Maxim Antonov.
+ Sponsored by: Robert Klemme
+ - Gracefully handle existing website keys without matching certificates.
+ This can happen if Privoxy was previously running with an invalid
+ TLS configuration that didn't allow it to create a certificate.
+ - Recycle debug bit 4 for Tagging-related messages.
+ - Improve the message shown when the client-tags CGI page
+ is requested with no tags configured.
+ - Shorten the 'donate' and 'participate' links used by templates
+ using redirects. Currently the redirects lead to the FAQ entries
+ but in the future we may want to relocate the content and using
+ redirects makes this more convenient.
+ - Log an error when a PCRE-HOST-PATTERN is used with
+ FEATURE_PCRE_HOST_PATTERNS disabled. Don't treat this a
+ fatal error so the regression tests can be used with and
+ without FEATURE_PCRE_HOST_PATTERNS.
+ - The code compiles with older C compilers again.
+ - The chdir() return code is checked to fix a compiler warning.
+ - The packages feed has been removed from the source tarball.
+ It's usually out of date when the source tarball is generated
+ for the release.
+ - Fixed harmless compiler warnings from GCC9 with -D_FORTIFY_SOURCE=2.
+ - windows: Remove obsolete '$(DEST)/doc/images' target.
+ - windows: Install the images referenced in the user manual.
+ - Remove obsolete 'gnu_regex.@OBJEXT@' target.
+ - When installing from the GNUMAkefile, don't create an 'images'
+ directory which is no longer used. The images were relocated to
+ the user-manual directory years ago.
+ - Add new FEATURES to the show-status page and resort list.
+ - Remove unused variable in the OpenSSL-specific code.
+ - Update bug tracker URL in cgi_error_unknown().
+ - Saved a couple of memory allocations when sorting client headers.
+ - Improved a couple of error messages.
+ - Saved memory allocations when using OpenSSL and checking if a
+ key already exists.
+ - The configure script will bail out if OpenSSL and mbedTLS are
+ enabled at the same time.
+ - Log a message right before exiting gracefully.
+ - A couple of structures have been rearranged to require slightly
+ less memory.
+ - When https inspection is enabled and the certificate is invalid
+ the error message is now sent with status code 403 instead of 200.
+ - The Slackware rc script template has been renamed to
+ slackware/rc.privoxy.in to silence complaints when building
+ Debian packages.
+ - When building with MbedTLS support, mbedtls_md5_ret() is used
+ instead of mbedtls_md5() which is deprecated and causes a warning
+ on Debian GNU/Linux.
- Action file improvements:
- - The pattern 'promotions.' is no longer being blocked.
- Reported by rakista in #3608540.
- - Disable fast-redirects for .microsofttranslator.com/.
- - Disable filter{banners-by-size} for .dgb-tagungszentren.de/.
- - Add adn.speedtest.net as a site-specific unblocker.
- Support request #3612908.
- - Disable filter{banners-by-size} for creativecommons.org/.
- - Block requests to data.gosquared.com/. Reported by cbug in #3613653.
- - Unblock .conrad./newsletter/. Reported by David Bo in #3614238.
- - Unblock .bundestag.de/.
- - Unblock .rote-hilfe.de/.
- - Disable fast-redirects for .facebook.com/plugins/like.php.
- - Unblock Stackexchange popup URLs that aren't used to serve ads.
- Reported by David Wagner in #3615179.
- - Disable fast-redirects for creativecommons.org/.
- - Unblock .stopwatchingus.info/.
- - Block requests for .adcash.com/script/.
- Reported by Tyrexionibus in #3615289.
- - Disable HTML filters if the response was tagged as JavaScript.
- Filtering JavaScript code with filters intended to deal with HTML
- is usually a waste of time and, more importantly, may break stuff.
- - Use a custom redirect{} for .washingtonpost.com/wp-apps/imrs\.php\?src=
- Previously enabling the 'Advanced' settings (or manually enabling
- +fast-redirects{}) prevented some images from being loaded properly.
- - Unblock "adina*." Fixes #919 reported by Morton A. Goldberg.
- - Block '/.*DigiAd'.
- - Unblock 'adele*.'. Reported by Adele Lime in #1663.
- - Disable banners-by-size for kggp.de/.
-
-- Filter file improvements & bug fixes:
- - Decrease the chances that js-annoyances creates invalid JavaScript.
- Submitted by John McGowan on ijbswa-users@.
- - Let the msn filter hide 'related' ads again.
- - Remove a stray '1' in the 'html-annoyances' filter.
- - Prevent img-reorder from messing up img tags with empty src
- attributes. Fixes #880 reported by Duncan.
-
-- Documentation improvements:
- - Updated the 'Would you like to donate?' section.
- - Note that invalid forward-override{} parameter syntax isn't
- detected until the parameter is used.
- - Add another +redirect{} example: a shortcut for illumos bugs.
- - Make it more obvious that many operating systems support log
- rotation out of the box.
- - Fixed dead links. Reported by Mark Nelson in #3614557.
- - Rephrased the 'Why is the configuration so complicated?' answer
- to be slightly less condescending. Anonymously suggested in #3615122.
- - Be more explicit about accept-intercepted-requests's lack of MITM support.
- - Make 'demoronizer' FAQ entries more generic.
- - Add an example hostname to the --pre-chroot-nslookup description.
- - Add an example for a host pattern that matches an IP address.
- - Rename the 'domain pattern' to 'host pattern' as it may
- contain IP addresses as well.
- - Recommend forward-socks5t when using Tor. It seems to work fine and
- modifying the Tor configuration to profit from it hasn't been necessary
- for a while now.
- - Add another redirect{} example to stress that redirect loops can
- and should be avoided.
- - The usual spelling and grammar fixes. Parts of them were
- reported by Reuben Thomas in #3615276.
- - Mention the PCRS option letters T and D in the filter section.
- - Clarify that handle-as-empty-doc-returns-ok is still useful
- and will not be removed without replacement.
- - Note that security issues shouldn't be reported using the bug tracker.
- - Clarify what Privoxy does if both +block{} and +redirect{} apply.
- - Removed the obsolete bookmarklets section.
-
-- Build system improvements:
- - Let --with-group properly deal with secondary groups.
- Patch submitted by Anatoly Arzhnikov in #3615187.
- - Fix web-actions target.
- - Add a web-faq target that only updates the FAQ on the webserver.
- - Remove already-commented-out non-portable DOSFILTER alternatives.
- - Remove the obsolete targets dok-put and dok-get.
- - Add a sf-shell target.
-
-- Known bugs:
- - To compile with --disable-force you need the following change which
- didn't make it into the release:
- http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/project.h?r1=1.208&r2=1.209&view=patch
- Thanks to Kai Raven for the report.
+ - Block requests to eu-tlp03.kameleoon.com/.
+ - Unblock metrics.sr.ht/.
+ - Disable fast-redirects for .fsf.org/.
+ - Disable fast-redirects for .gravater.com/.
+ - Disable fast-redirects for .ksta.de/.
+ - Block requests to tag.crsspxl.com/.
+ - Block requests to analytics.slashdotmedia.com/.
+ - Block requests to ml314.com/.
+ - Block requests to .adroll.com/.
+ - Block requests to fastlane.rubiconproject.com/.
+ - Block requests to api.theadex.com/.
+ - Block requests to ih.adscale.de/.
+ - Block requests to .s400.meetrics.net/.
+ - Block requests for pp.lp4.io/.
+ - Block requests for trc-events.taboola.com/.
+
+- Filter file improvements:
+ - A allow-autocompletion filter has been added which changes
+ autocomplete="off" to "on" on input fields to allow autocompletion.
+ Requested by Jamie Zawinski in #370.
+ Filter based on a submission by Aaron Linville.
+ - Added an imdb filter.
+ - Added a sourceforge filter that reduces the amount of ads
+ for proprietary software.
+ - Added a github filter that removes the annoying "Sign-Up"
+ banner and the Cookie disclaimer.
+ - Removed a duplicated pcrs command from the js-annoyances filter.
+ - The crude-parental filter now provides a short reason when blocking,
+ inserts a link to Privoxy's webinterface and adds a new line at
+ the end of the generated page.
+
+- Privoxy-Log-Parser:
+ - Highlight a few more messages.
+ - Add a handler for tagging messages.
+ - Properly deal with 'Certificate error' crunches
+ Previously the error description was highlighted as 'host'.
+ - Log truncated LOG_LEVEL_CLF messages more gracefully
+ and note that the statistics will be imprecise.
+ - Fixed perldoc typo.
+ - Bump version to 0.9.2.
+
+- Privoxy-Regression-Test:
+ - Use http://127.0.0.1:8118/ as default Privoxy address
+ unless http_proxy is set through the environment.
+ - Add a --privoxy-cgi-prefix option that specifies the prefix
+ to use when building URLs that are supposed to reach Privoxy's
+ CGI interface. If it's not set, http://p.p/ is used, which is
+ supposed to work with the default Privoxy configuration.
+ If Privoxy has been built with FEATURE_HTTPS_INSPECTION enabled,
+ and if https inspection is activated with the +https-inspection
+ action, this option can be used with "https://p.p/" provided the
+ system running Privoxy-Regression-Test has been configured to
+ trust the certificate used by Privoxy.
+ Note that there are currently two tests in the official
+ regression-tests.action file that are expected to fail
+ when using "https://p.p/" as privoxy-cgi-prefix.
+ - Skip the connection-established response in get_status_code()
+ when looking for the status code with a CGI prefix
+ that starts with https://. We care about the status code
+ sent by the impersonated web server.
+ - Use --proxy-header when using a CGI prefix with https://
+ and a "Host:" header.
+ - Allow '|' in tokens and values to allow tag patterns like
+ "TAG:^(application|text)/(x-)?javascript$".
+ - When get_cgi_page_or_else() fails, include the URL of the
+ requested page in the log message.
+ - Added a --check-bad-ssl option that can be used to verify that
+ Privoxy detects certificate problems when accessing the test
+ sites from badssl.com.
+ - Bumped version to 0.7.2
+
+- uagen:
+ - Update example output.
+ - Recommend the use of the https-inspection action in the documentation.
+ - Upgrade a couple of URLs to https://.
+ - Add ElectroBSD to the list of operating systems.
+ - Bumped generated Firefox version to 78 (ESR).
+ - Bumped version to 1.2.2.
+
+ - User documentation:
+ - Remove reference to 'How to Report Bugs Effectively'.
+ It was only rendered as text without URL in the README anyway
+ and there's no indication that users read it ...
+ - Let the dok-readme target fix the location embedded into the
+ README file. This used to be done by CVS but since the git migration
+ it has to be done through other means.
+ - Remove 'experimental' warning for client-specific-tag-related directives.
+ They seem to work reliably and there is no obvious reason
+ why we would change the syntax in the near future.
+ - Describe how to check if Privoxy has been built with
+ FEATURE_HTTPS_INSPECTION.
+ - Add a link to the trusted-cas-file documentation
+ that explains how the user can create the file herself.
+ - Don't explicitly mention the license for the code coming from
+ 'Anonymous Coders' and Junkbusters. It's obviously licensed under
+ the GNU GPL like the rest of Privoxy or we wouldn't be allowed to
+ distribute it.
+ - Update the +hide-user-agent example with uagen output.
+ - Slightly improve the wording of the ca-key-file documentation.
+ - Explicitly mention Windows 10 as supported so search engines and
+ users looking for it can find it.
+ - Import a bunch of contributors from the ChangeLog.
+ - Remove obsolete doc/gpl.html.
+ - Upgrade a couple of links to https://.
+ - Don't prefer the SourceForge patch tracker over the
+ privoxy-devel mailing list. While at it, link to the
+ SourceForge patch tracker.
+ - Mention http-inspection in the 'my browser warns me about
+ unauthenticated content' FAQ entry.
+ - Simplify the 'Is there is a license or fee?' FAQ entry.
+ - Add another +redirect{} example.
+ - Explicitly mention that interested sponsors should include
+ the link target in their first mail.
+ - Clarify that only Privoxy team members can object to new sponsors
+ and link to the list of current team members.
+ - Note that sponsor URLs may not contain keyword spam.
+ - Garbage collect doc/webserver/images which isn't referenced anymore.
+ - Update the method to reach the proxy settings in Firefox.
+ - Update proxy_setup.jpg description to refer to Firefox.
+ - Regenerate proxy_setup.jpg with a more recent Firefox (78.0).
+ - Regenerate files-in-use.jpg without obsolete standard.action
+ with modern colors and a slightly better quality.
+ - Update URL to the actionsfile tracker.
+ - Update a support request URL.
+ - Rephrase the 'Can Privoxy run as service' FAQ entry and
+ remove an obsolete paragraph.
+ - Let the 'Where can I get updated Actions Files?' entry link to
+ the gitweb version of default.action.master.
+ - Update a link to the default.action file.
+ - Update URLs for trackers and mailing lists.
+ - Replace CVS reference with git.
+ - Mention regression-tests.action in the config file.
+ - Explicitly mention in the config file that access to the
+ CA key should be limited to Privoxy.
+ - List more client-specific-tag examples for inspiration.
+ - Add additional headers to the client-header-order example.
+ - Note that actions aren't updated after rewrites.
+ - Explicitly mention that upgrading from http to https with
+ a client-header filter is not supported
+ - Note that protocol and host have to be added when rewriting
+ the destination host for https-inspected requests.
+ - Explicitly mention that the CA key is used to sign certificates.
+ - Put openssl command in 'command' tags.
+ - The man page has been moved from section 1 to man section 8.
+
+- Developer manual:
+ - Flesh out the build instructions for Debian.
+ - Remove the packaging instructions for RPM-based systems.
+ They don't work and we don't release RPM packages anymore anyway.
+ - Remove the packaging instructions for Solaris.
+ They don't work and we don't release Solaris packages anymore anyway.
+ - Update the suggested subject for the announce mails.
+ - Update upload instructions.
+ ftp://upload.sourceforge.net is no longer functional.
+ - Remove a couple of package-dependent upload instructions
+ that don't actually work.
+ - Remove 'cd current' that no longer works.
+ - Add regression-tests.action to the list of files that should be installed.
+ - Stop claiming that there are text versions of the manuals.
+ We stopped building them in 2008 (9ed36a3c5e6f12).
+ - Note that the 'webserver' target creates the link needed for the user-manual.
+ - Suggest to use the master branch as reference when creating
+ the ChangeLog so the steps work when the current branch differs
+ from master which is likely as the developer manual
+ suggests to use a local branch for development.
+ - Add the -s flag to the suggested 'git tag' command. We prefer signed tags.
+ - Mention that merges into 'master' should be avoided.
+ - Add git commands that should result in a merge-free history.
+ - Mention Privoxy-Regression-Test.
+ - Add a section id to reduce link churn.
+ - Recommend the dok-tidy target when building docs for the webserver.
+ - Add another plug for the privoxy-devel mailing list.
+ - Let the intro link the copyright section in the user manual instead
+ of giving an incomplete summary of the license status.
+ - Clarify that the webserver target uploads to the SourceForge webserver.
+ - Mark the documentation for the Mac OS X installers as out of date and
+ change the SCM name back to CVS.
+ - Fix the location of the installer modules for Mac OS X.
+ They are not actually available through git (yet).
+ - Don't speak of Privoxy version 3 in the past tense.
+ - Update the list of programs required for the release process.
+ - Update description of the webserver target which uses ssh, not scp.
+ - Remove obsolete reference to config.new.
+
+- Tests:
+ - Add another hide-referrer{conditional-block} test.
+ - Add another hide-referrer{conditional-forge} test.
+ - Fix a hide-referrer{conditional-forge} test
+ that expected an acceptable header to be forged.
+ - Fix a hide-referrer{conditional-block} test
+ that expected an acceptable Referer to be removed.
+ - Explain why the "Set Header = Host: whatever.example.org" test is
+ expected to fail when using a CGI prefix that starts with "https://".
+ - Explain why a connection-sharing test is known to fail
+ when using "https://p.p/" as CGI prefix.
+ - Add a link to Privoxy-Regression-Test to regression-tests.action
+ in case it isn't packaged.
+ - Add regression tests for pcre host patterns.
+ - Fixed a regression test that is executed when
+ FEATURE_GRACEFUL_TERMINATION is enabled.
+
+- Privoxy infrastructure:
+ - Import a Privoxy logo for the website.
+ - Update Tor onion service to HiddenServiceVersion 3.
+ - Display the "model" photos in a single row and remove placeholder images.
+ - Regenerate homepage with updated sponsor list.
+ - Use the '/sponsor' redirect for the link to the sponsor page.
+ - Git commit messages are sent to the Privoxy-commits mailing list.
-----------------------------------------------------------------
About Privoxy:
Our TODO list is rather long. Helping hands and donations are welcome:
- * http://www.privoxy.org/faq/general.html#PARTICIPATE
+ * https://www.privoxy.org/participate
- * http://www.privoxy.org/faq/general.html#DONATE
+ * https://www.privoxy.org/donate
At present, Privoxy is known to run on Windows 95 and later versions
-(98, ME, 2000, XP, Vista, Windows 7 etc.), GNU/Linux (RedHat, SuSE,
-Debian, Fedora, Gentoo, Slackware and others), Mac OS X (10.4 and
-upwards on PPC and Intel processors), OS/2, Haiku, DragonFly,
-FreeBSD, NetBSD, OpenBSD, Solaris, and various other flavors of Unix.
+(98, ME, 2000, XP, Vista, Windows 7, Windows 10 etc.), GNU/Linux
+(RedHat, SuSE, Debian, Fedora, Gentoo, Slackware and others),
+Mac OS X (10.4 and upwards on PPC and Intel processors), Haiku,
+DragonFly, ElectroBSD, FreeBSD, NetBSD, OpenBSD, Solaris,
+and various other flavors of Unix.
In addition to the core features of ad blocking and cookie management,
Privoxy provides many supplemental features, that give the end-user
* Supports tagging which allows to change the behaviour based on client
and server headers.
+ * Supports https inspection which allows to filter https requests.
+
* Can be run as an "intercepting" proxy, which obviates the need to
configure browsers individually.
tracing of rule and filter effects. Remote toggling.
* Web page filtering (text replacements, removes banners based on size,
- invisible <quote>web-bugs</quote> and HTML annoyances, etc.)
+ invisible "web-bugs" and HTML annoyances, etc.)
* Modularized configuration that allows for standard settings and user
settings to reside in separate files, so that installing updated actions
* Most features are controllable on a per-site or per-location basis.
-Download location:
- http://sourceforge.net/project/showfiles.php?group_id=11118
-
Home Page:
- http://www.privoxy.org/
+ https://www.privoxy.org/
- - Privoxy Developers <ijbswa-developers@lists.sourceforge.net>
+ - Privoxy Developers <privoxy-devel@lists.privoxy.org>