When I login to certain websites I get one line of ���������� 的最新解答https://support.mozilla.org/zh-TW/questions/6685752010-05-10T08:11:57-07:00Did you check the Encoding (View > Character Encoding)?
That web page uses Western (ISO-8859-1)
S2010-05-10T08:11:57-07:00cor-elhttps://support.mozilla.org/zh-TW/questions/668575#answer-24985<p>Did you check the Encoding (View &gt; Character Encoding)?
That web page uses Western (ISO-8859-1)
</p><p>Start Firefox in <a href="/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">Diagnose Firefox issues using Troubleshoot Mode</a> to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools &gt; Add-ons &gt; Themes).
See <a href="/en-US/kb/troubleshoot-extensions-themes-to-fix-problems" rel="nofollow">Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems</a> and <a href="/en-US/kb/troubleshoot-issues-with-plugins-fix-problems" rel="nofollow">Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems</a>
</p><p>If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the <em>Safe mode</em> start window.
You have to close and restart Firefox after each change via "File &gt; Exit" (on Mac: "Firefox &gt; Quit")
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