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#include "head.wmi" TITLE="Torbutton FAQ"
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<h2>Torbutton FAQ</h2>
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<strong>When I toggle Tor, my sites that use javascript stop working. Why?</strong>
<p>
Javascript can do things like wait until you have disabled Tor before trying
to contact its source site, thus revealing your IP address. As such, Torbutton
must disable Javascript, Meta-Refresh tags, and certain CSS behavior when Tor
state changes from the state that was used to load a given page. These features
are re-enabled when Torbutton goes back into the state that was used to load
the page, but in some cases (particularly with Javascript and CSS) it is
sometimes not possible to fully recover from the resulting errors, and the
page is broken. Unfortunately, the only thing you can do (and still remain
safe from having your IP address leak) is to reload the page when you toggle
Tor, or just ensure you do all your work in a page before switching tor state.
</p>
<strong>I can't click on links or hit reload after I toggle Tor! Why?</strong>
<p>
Due to <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=409737">Firefox
Bug 409737</a>, pages can still open popups and perform Javascript redirects
and history access after Tor has been toggled. These popups and redirects can
be blocked, but unfortunately they are indistinguishable from normal user
interactions with the page (such as clicking on links, opening them in new
tabs/windows, or using the history buttons), and so those are blocked as a
side effect. Once that Firefox bug is fixed, this degree of isolation will
become optional (for people who do not want to accidentally click on links and
give away information via referrers). A workaround is to right click on the
link, and open it in a new tab or window. The tab or window won't load
automatically, but you can hit enter in the URL bar, and it will begin
loading. Hitting enter in the URL bar will also reload the page without
clicking the reload button.
</p>
<strong>I can't view videos on YouTube and other flash-based sites. Why?</strong>
<p>
