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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Privoxy Frequently Asked Questions</TITLE
><META
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><BODY
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><DIV
CLASS="ARTICLE"
><DIV
CLASS="TITLEPAGE"
><H1
CLASS="TITLE"
><A
NAME="AEN2"
>Privoxy Frequently Asked Questions</A
></H1
><P
CLASS="PUBDATE"
> <SUB
> <A
HREF="copyright.html"
>Copyright</A
> <20> 2001-2009 by
<A
HREF="http://www.privoxy.org/"
TARGET="_top"
>Privoxy Developers</A
>
</SUB
><BR></P
><P
CLASS="PUBDATE"
>$Id: index.html,v 1.51 2009/03/21 12:59:04 fabiankeil Exp $<BR></P
><DIV
><DIV
CLASS="ABSTRACT"
><P
></P
><A
NAME="AEN9"
></A
><P
> This FAQ gives quick answers to frequently asked questions about
<A
HREF="http://www.privoxy.org/"
TARGET="_top"
>Privoxy</A
>.
It is not a substitute for the
<A
HREF="../user-manual/index.html"
TARGET="_top"
><I
CLASS="CITETITLE"
>Privoxy User Manual</I
></A
>.
</P
><P
>What is Privoxy?</P
><P
> Privoxy is a non-caching web proxy with advanced filtering capabilities
for enhancing privacy, modifying web page data and HTTP headers, controlling
access, and removing ads and other obnoxious Internet junk. Privoxy has a
flexible configuration and can be customized to suit individual needs and tastes.
It has application for both stand-alone systems and multi-user networks.</P
><P
> Privoxy is Free Software and licensed under the GPL2.</P
><P
> Privoxy is an associated project of Software in the Public Interest (SPI).
<A
HREF="http://www.privoxy.org/faq/general.html#DONATE"
TARGET="_top"
>Donations are welcome</A
>.</P
><P
> Please note that this document is a work in progress. This copy represents
the state at the release of version 3.0.12.
You can find the latest version of the document at <A
HREF="http://www.privoxy.org/faq/"
TARGET="_top"
>http://www.privoxy.org/faq/</A
>.
Please see the <A
HREF="contact.html"
>Contact section</A
> if you want to
contact the developers.
</P
><P
></P
></DIV
></DIV
><HR></DIV
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>1. <A
HREF="general.html"
>General Information</A
></DT
><DD
><DL
><DT
>1.1. <A
HREF="general.html#WHO-USES"
>Who should give <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> a try?</A
></DT
><DT
>1.2. <A
HREF="general.html#BESTCHOICE"
>Is Privoxy the best choice for
me?</A
></DT
><DT
>1.3. <A
HREF="general.html#PROXYMORON"
>What is a <SPAN
CLASS="QUOTE"
>"proxy"</SPAN
>? How does
Privoxy work?</A
></DT
><DT
>1.4. <A
HREF="general.html#OTHERSTUFF"
>Does Privoxy do anything more than ad blocking?</A
></DT
><DT
>1.5. <A
HREF="general.html#NEWJB"
>What is this new version of
<SPAN
CLASS="QUOTE"
>"Junkbuster"</SPAN
>?</A
></DT
><DT
>1.6. <A
HREF="general.html#AEN78"
>Why <SPAN
CLASS="QUOTE"
>"Privoxy"</SPAN
>? Why change the name from
Junkbuster at all?</A
></DT
><DT
>1.7. <A
HREF="general.html#DIFFERS"
>How does Privoxy differ
from the old Junkbuster?</A
></DT
><DT
>1.8. <A
HREF="general.html#WHATSANAD"
>How does Privoxy know what is
an ad, and what is not?</A
></DT
><DT
>1.9. <A
HREF="general.html#AEN160"
>Can Privoxy make mistakes?
This does not sound very scientific.</A
></DT
><DT
>1.10. <A
HREF="general.html#AEN166"
>Will I have to configure Privoxy
before I can use it?</A
></DT
><DT
>1.11. <A
HREF="general.html#LAN"
>Can Privoxy run as a server on a network?</A
></DT
><DT
>1.12. <A
HREF="general.html#BROWSERS2"
>My browser does the same things as
Privoxy. Why should I use Privoxy at all?</A
></DT
><DT
>1.13. <A
HREF="general.html#WHYTRUST"
>Why should I trust Privoxy?</A
></DT
><DT
>1.14. <A
HREF="general.html#LICENSE"
>Is there is a license or fee? What about a
warranty? Registration?</A
></DT
><DT
>1.15. <A
HREF="general.html#SPYWARE"
>Can Privoxy remove spyware? Adware? Viruses?</A
></DT
><DT
>1.16. <A
HREF="general.html#OTHERADS"
>Can I use Privoxy with other ad-blocking software?</A
></DT
><DT
>1.17. <A
HREF="general.html#JOINTEAM"
>I would like to help you, what can I do?</A
></DT
><DD
><DL
><DT
>1.17.1. <A
HREF="general.html#JOINTEAM-WORK"
>Would you like to participate?</A
></DT
><DT
>1.17.2. <A
HREF="general.html#DONATE"
>Would you like to donate?</A
></DT
></DL
></DD
></DL
></DD
><DT
>2. <A
HREF="installation.html"
>Installation</A
></DT
><DD
><DL
><DT
>2.1. <A
HREF="installation.html#WHICHBROWSERS"
>Which browsers are supported by Privoxy?</A
></DT
><DT
>2.2. <A
HREF="installation.html#WHICHOS"
>Which operating systems are supported?</A
></DT
><DT
>2.3. <A
HREF="installation.html#EMAIL-CLIENT"
>Can I use Privoxy with my email client?</A
></DT
><DT
>2.4. <A
HREF="installation.html#FIRSTSTEP"
>I just installed Privoxy. Is there anything
special I have to do now?</A
></DT
><DT
>2.5. <A
HREF="installation.html#LOCALHOST"
>What is the proxy address of Privoxy?</A
></DT
><DT
>2.6. <A
HREF="installation.html#NOTHING"
>I just installed Privoxy, and nothing is happening.
All the ads are there. What's wrong?</A
></DT
><DT
>2.7. <A
HREF="installation.html#NOTUSED"
>I get a <SPAN
CLASS="QUOTE"
>"Privoxy is not being used"</SPAN
> dummy page although
Privoxy is running and being used.</A
></DT
></DL
></DD
><DT
>3. <A
HREF="configuration.html"
>Configuration</A
></DT
><DD
><DL
><DT
>3.1. <A
HREF="configuration.html#AEN354"
>What exactly is an <SPAN
CLASS="QUOTE"
>"actions"</SPAN
> file?</A
></DT
><DT
>3.2. <A
HREF="configuration.html#ACTIONSS"
>The <SPAN
CLASS="QUOTE"
>"actions"</SPAN
> concept confuses me. Please list
some of these <SPAN
CLASS="QUOTE"
>"actions"</SPAN
>.</A
></DT
><DT
>3.3. <A
HREF="configuration.html#AEN377"
>How are actions files configured? What is the easiest
way to do this?</A
></DT
><DT
>3.4. <A
HREF="configuration.html#AEN386"
>There are several different <SPAN
CLASS="QUOTE"
>"actions"</SPAN
> files. What are
the differences?</A
></DT
><DT
>3.5. <A
HREF="configuration.html#GETUPDATES"
>Where can I get updated Actions Files?</A
></DT
><DT
>3.6. <A
HREF="configuration.html#NEWCONFIG"
>Can I use my old config files?</A
></DT
><DT
>3.7. <A
HREF="configuration.html#DIFFICULT"
>Why is the configuration so complicated?</A
></DT
><DT
>3.8. <A
HREF="configuration.html#YAHOO"
>How can I make my Yahoo/Hotmail/Gmail account work?</A
></DT
><DT
>3.9. <A
HREF="configuration.html#CONFIGFILES"
>What's the difference between the
<SPAN
CLASS="QUOTE"
>"Cautious"</SPAN
>, <SPAN
CLASS="QUOTE"
>"Medium"</SPAN
> and <SPAN
CLASS="QUOTE"
>"Advanced"</SPAN
> defaults?</A
></DT
><DT
>3.10. <A
HREF="configuration.html#BROWSECONFIG"
>Why can I change the configuration
with a browser? Does that not raise security issues?</A
></DT
><DT
>3.11. <A
HREF="configuration.html#AEN481"
>What is the <TT
CLASS="FILENAME"
>default.filter</TT
> file? What is a <SPAN
CLASS="QUOTE"
>"filter"</SPAN
>?</A
></DT
><DT
>3.12. <A
HREF="configuration.html#LANCONFIG"
>How can I set up Privoxy to act as a proxy for my
LAN?</A
></DT
><DT
>3.13. <A
HREF="configuration.html#AEN532"
>Instead of ads, now I get a checkerboard pattern. I don't want to see anything.</A
></DT
><DT
>3.14. <A
HREF="configuration.html#AEN549"
>Why would anybody want to see a checkerboard pattern?</A
></DT
><DT
>3.15. <A
HREF="configuration.html#AEN555"
>I see some images being replaced with text
instead of the checkerboard image. Why and how do I get rid of this?</A
></DT
><DT
>3.16. <A
HREF="configuration.html#SRVANY"
>Can Privoxy run as a service
on Win2K/NT/XP?</A
></DT
><DT
>3.17. <A
HREF="configuration.html#OTHERPROXY"
>How can I make Privoxy work with other
proxies like Squid or Tor?</A
></DT
><DT
>3.18. <A
HREF="configuration.html#PORT-80"
>Can I just set Privoxy to use port 80
and thus avoid individual browser configuration?</A
></DT
><DT
>3.19. <A
HREF="configuration.html#TRANSPARENT"
>Can Privoxy run as a <SPAN
CLASS="QUOTE"
>"transparent"</SPAN
> proxy?</A
></DT
><DT
>3.20. <A
HREF="configuration.html#INTERCEPTING"
>Can Privoxy run as a <SPAN
CLASS="QUOTE"
>"intercepting"</SPAN
> proxy?</A
></DT
><DT
>3.21. <A
HREF="configuration.html#OUTLOOK"
>How can I configure Privoxy for use with Outlook?</A
></DT
><DT
>3.22. <A
HREF="configuration.html#OUTLOOK-MORE"
>How can I have separate rules just for HTML mail?</A
></DT
><DT
>3.23. <A
HREF="configuration.html#SNEAKY-COOKIES"
>I sometimes notice cookies sneaking through. How?</A
></DT
><DT
>3.24. <A
HREF="configuration.html#EVIL-COOKIES"
>Are all cookies bad? Why?</A
></DT
><DT
>3.25. <A
HREF="configuration.html#ALLOW-COOKIES"
>How can I allow permanent cookies for my trusted sites?</A
></DT
><DT
>3.26. <A
HREF="configuration.html#MULTIPLES"
>Can I have separate configurations for different users?</A
></DT
><DT
>3.27. <A
HREF="configuration.html#WHITELISTS"
>Can I set-up Privoxy as a whitelist of
<SPAN
CLASS="QUOTE"
>"good"</SPAN
> sites?</A
></DT
><DT
>3.28. <A
HREF="configuration.html#NO-ADBLOCK"
>How can I turn off ad-blocking?</A
></DT
><DT
>3.29. <A
HREF="configuration.html#TEMPLATES"
>How can I have custom template pages, like the
<SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>BLOCKED</I
></SPAN
> page?</A
></DT
><DT
>3.30. <A
HREF="configuration.html#BLOCKALL"
>How can I remove the <SPAN
CLASS="QUOTE"
>"Go There Anyway"</SPAN
> link from
the <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>BLOCKED</I
></SPAN
> page?</A
></DT
></DL
></DD
><DT
>4. <A
HREF="misc.html"
>Miscellaneous</A
></DT
><DD
><DL
><DT
>4.1. <A
HREF="misc.html#AEN729"
>How much does Privoxy slow my browsing down? This
has to add extra time to browsing.</A
></DT
><DT
>4.2. <A
HREF="misc.html#LOADINGTIMES"
>I notice considerable
delays in page requests. What's wrong?</A
></DT
><DT
>4.3. <A
HREF="misc.html#CONFIGURL"
>What are "http://config.privoxy.org/" and
"http://p.p/"?</A
></DT
><DT
>4.4. <A
HREF="misc.html#NEWADS"
>How can I submit new ads, or report
problems?</A
></DT
><DT
>4.5. <A
HREF="misc.html#NEWADS2"
>If I do submit missed ads, will
they be included in future updates?</A
></DT
><DT
>4.6. <A
HREF="misc.html#NOONECARES"
>Why doesn't anyone answer my support
request?</A
></DT
><DT
>4.7. <A
HREF="misc.html#IP"
>How can I hide my IP address?</A
></DT
><DT
>4.8. <A
HREF="misc.html#AEN794"
>Can Privoxy guarantee I am anonymous?</A
></DT
><DT
>4.9. <A
HREF="misc.html#AEN812"
>A test site says I am not using a Proxy.</A
></DT
><DT
>4.10. <A
HREF="misc.html#TOR"
>How do I use Privoxy
together with Tor?</A
></DT
><DT
>4.11. <A
HREF="misc.html#AEN868"
>Might some things break because header information or
content is being altered?</A
></DT
><DT
>4.12. <A
HREF="misc.html#AEN882"
>Can Privoxy act as a <SPAN
CLASS="QUOTE"
>"caching"</SPAN
> proxy to
speed up web browsing?</A
></DT
><DT
>4.13. <A
HREF="misc.html#AEN892"
>What about as a firewall? Can Privoxy protect me?</A
></DT
><DT
>4.14. <A
HREF="misc.html#AEN897"
>I have large empty spaces / a checkerboard pattern now where
ads used to be. Why?</A
></DT
><DT
>4.15. <A
HREF="misc.html#AEN905"
>How can Privoxy filter Secure (HTTPS) URLs?</A
></DT
><DT
>4.16. <A
HREF="misc.html#AEN919"
>Privoxy runs as a <SPAN
CLASS="QUOTE"
>"server"</SPAN
>. How
secure is it? Do I need to take any special precautions?</A
></DT
><DT
>4.17. <A
HREF="misc.html#TURNOFF"
>Can I temporarily disable Privoxy?</A
></DT
><DT
>4.18. <A
HREF="misc.html#REALLYOFF"
>When <SPAN
CLASS="QUOTE"
>"disabled"</SPAN
> is Privoxy totally
out of the picture?</A
></DT
><DT
>4.19. <A
HREF="misc.html#TURNOFF2"
>How can I tell Privoxy to totally ignore certain sites?</A
></DT
><DT
>4.20. <A
HREF="misc.html#CRUNCH"
>My logs show Privoxy <SPAN
CLASS="QUOTE"
>"crunches"</SPAN
>
ads, but also its own internal CGI pages. What is a <SPAN
CLASS="QUOTE"
>"crunch"</SPAN
>?</A
></DT
><DT
>4.21. <A
HREF="misc.html#DOWNLOADS"
>Can Privoxy effect files that I download
from a webserver? FTP server?</A
></DT
><DT
>4.22. <A
HREF="misc.html#DOWNLOADS2"
>I just downloaded a Perl script, and Privoxy
altered it! Yikes, what is wrong!</A
></DT
><DT
>4.23. <A
HREF="misc.html#HOSTSFILE"
>Should I continue to use a <SPAN
CLASS="QUOTE"
>"HOSTS"</SPAN
> file for ad-blocking?</A
></DT
><DT
>4.24. <A
HREF="misc.html#SEEALSO"
>Where can I find more information about Privoxy
and related issues?</A
></DT
><DT
>4.25. <A
HREF="misc.html#MICROSUCK"
>I've noticed that Privoxy changes <SPAN
CLASS="QUOTE"
>"Microsoft"</SPAN
> to
<SPAN
CLASS="QUOTE"
>"MicroSuck"</SPAN
>! Why are you manipulating my browsing?</A
></DT
><DT
>4.26. <A
HREF="misc.html#VALID"
>Does Privoxy produce <SPAN
CLASS="QUOTE"
>"valid"</SPAN
> HTML (or XHTML)?</A
></DT
></DL
></DD
><DT
>5. <A
HREF="trouble.html"
>Troubleshooting</A
></DT
><DD
><DL
><DT
>5.1. <A
HREF="trouble.html#AEN1084"
>I cannot connect to any websites. Or, I am getting
<SPAN
CLASS="QUOTE"
>"connection refused"</SPAN
> message with every web page. Why?</A
></DT
><DT
>5.2. <A
HREF="trouble.html#ERROR503"
>Why am I getting a 503 Error (WSAECONNREFUSED) on every page?</A
></DT
><DT
>5.3. <A
HREF="trouble.html#AEN1107"
>I just added a new rule, but the steenkin ad is
still getting through. How?</A
></DT
><DT
>5.4. <A
HREF="trouble.html#BADSITE"
>One of my favorite sites does not work with Privoxy.
What can I do?</A
></DT
><DT
>5.5. <A
HREF="trouble.html#DUN"
>After installing Privoxy, I have to log in
every time I start IE. What gives?</A
></DT
><DT
>5.6. <A
HREF="trouble.html#FTP"
>I cannot connect to any FTP sites. Privoxy
is blocking me.</A
></DT
><DT
>5.7. <A
HREF="trouble.html#MACOSXIE"
>In Mac OS X, I can't configure Microsoft Internet Explorer to use
Privoxy as the HTTP proxy.</A
></DT
><DT
>5.8. <A
HREF="trouble.html#MACOSXUNINSTALL"
>In Mac OS X, I dragged the Privoxy folder to the trash in order to
uninstall it. Now the finder tells me I don't have sufficient privileges to
empty the trash.</A
></DT
><DT
>5.9. <A
HREF="trouble.html#MACOSXIMAGES"
>In Mac OS X Panther (10.3), images often fail to load and/or I
experience random delays in page loading. I'm using
<TT
CLASS="LITERAL"
>localhost</TT
> as my browser's proxy setting.</A
></DT
><DT
>5.10. <A
HREF="trouble.html#BLANKPAGE"
>I get a completely blank page at one site. <SPAN
CLASS="QUOTE"
>"View Source"</SPAN
>
shows only: <SPAN
CLASS="MARKUP"
>&#60;html&#62;&#60;body&#62;&#60;/body&#62;&#60;/html&#62;</SPAN
>. Without
Privoxy the page loads fine.</A
></DT
><DT
>5.11. <A
HREF="trouble.html#NOHOSTNAME"
>My logs show many <SPAN
CLASS="QUOTE"
>"Unable to get my own hostname"</SPAN
> lines.
Why?</A
></DT
><DT
>5.12. <A
HREF="trouble.html#INUSE"
>When I try to launch Privoxy, I get an
error message <SPAN
CLASS="QUOTE"
>"port 8118 is already in use"</SPAN
> (or similar wording).
Why?</A
></DT
><DT
>5.13. <A
HREF="trouble.html#DEMORONIZER"
>Pages with UTF-8 fonts are garbled.</A
></DT
><DT
>5.14. <A
HREF="trouble.html#DEMORONIZER2"
>Why are binary files (such as images) corrupted when Privoxy
is used?</A
></DT
><DT
>5.15. <A
HREF="trouble.html#DEMORONIZER3"
>What is the <SPAN
CLASS="QUOTE"
>"demoronizer"</SPAN
> and why is it there?</A
></DT
><DT
>5.16. <A
HREF="trouble.html#WINDOWOPEN"
>Why do I keep seeing <SPAN
CLASS="QUOTE"
>"PrivoxyWindowOpen()"</SPAN
> in raw source code?</A
></DT
><DT
>5.17. <A
HREF="trouble.html#DNSERRORS"
>I am getting too many DNS errors like <SPAN
CLASS="QUOTE"
>"404 No Such Domain"</SPAN
>. Why
can't Privoxy do this better?</A
></DT
><DT
>5.18. <A
HREF="trouble.html#ALLCPU"
>At one site Privoxy just hangs, and starts taking
all CPU. Why is this?</A
></DT
><DT
>5.19. <A
HREF="trouble.html#SLOWCRAWL"
>I just installed Privoxy, and all my
browsing has slowed to a crawl. What gives?</A
></DT
><DT
>5.20. <A
HREF="trouble.html#PREVENTCOMP"
>Why do my filters work on some sites but not on others?</A
></DT
><DT
>5.21. <A
HREF="trouble.html#SSL-WARNINGS"
>On some HTTPS sites my browser warns me about unauthenticated content,
the URL bar doesn't get highlighted and the lock symbol appears to be broken.
What's going on?</A
></DT
><DT
>5.22. <A
HREF="trouble.html#SE-LINUX"
>I get selinux error messages. How can I fix this?</A
></DT
><DT
>5.23. <A
HREF="trouble.html#GENTOO-RICERS"
>I compiled <SPAN
CLASS="APPLICATION"
>Privoxy</SPAN
> with Gentoo's portage and it appears to be very slow. Why?</A
></DT
></DL
></DD
><DT
>6. <A
HREF="contact.html"
>Contacting the developers, Bug Reporting and Feature Requests</A
></DT
><DD
><DL
><DT
>6.1. <A
HREF="contact.html#CONTACT-SUPPORT"
>Get Support</A
></DT
><DT
>6.2. <A
HREF="contact.html#REPORTING"
>Reporting Problems</A
></DT
><DD
><DL
><DT
>6.2.1. <A
HREF="contact.html#CONTACT-ADS"
>Reporting Ads or Other Configuration Problems</A
></DT
><DT
>6.2.2. <A
HREF="contact.html#CONTACT-BUGS"
>Reporting Bugs</A
></DT
></DL
></DD
><DT
>6.3. <A
HREF="contact.html#CONTACT-FEATURE"
>Request New Features</A
></DT
><DT
>6.4. <A
HREF="contact.html#CONTACT-OTHER"
>Other</A
></DT
></DL
></DD
><DT
>7. <A
HREF="copyright.html"
>Privoxy Copyright, License and History</A
></DT
><DD
><DL
><DT
>7.1. <A
HREF="copyright.html#AEN1451"
>License</A
></DT
><DT
>7.2. <A
HREF="copyright.html#AEN1467"
>History</A
></DT
></DL
></DD
></DL
></DIV
></DIV
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>&nbsp;</TD
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>General Information</TD
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