Firefox still sluggish after following all recommended steps, including refresh 的最新解答https://support.mozilla.org/zh-TW/questions/12076662018-03-09T08:00:25-08:00Hi, uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Fi2018-03-09T08:00:25-08:00Pkshadowhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1086202<p>Hi, uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's)
Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do&nbsp;:
</p>
<ul><li><a href="https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles" rel="nofollow">https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer" rel="nofollow">https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer</a>
</li></ul>
<p>Reinstall with Current Release Firefox 52.6.0 with a Full Version Installer
</p>
<ul><li><a href="https://www.mozilla.org/en-US/firefox/organizations/all/" rel="nofollow">https://www.mozilla.org/en-US/firefox/organizations/all/</a>
</li></ul>
<p>Then follow some of this for the SSD&nbsp;: <a href="https://www.servethehome.com/firefox-is-eating-your-ssd-here-is-how-to-fix-it/" rel="nofollow">https://www.servethehome.com/firefox-is-eating-your-ssd-here-is-how-to-fix-it/</a>
</p><p>Please let us know if this solved your issue or if need further assistance.
</p>Wrong post. Ignore, Thanks
2018-03-09T07:55:03-08:00Pkshadowhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1086196<p>Wrong post. Ignore, Thanks
</p>Give a try on this :
Repair System Registry and Files
Find the Dos Prompt Right Click and Run2018-03-09T07:54:00-08:00Pkshadowhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1086195<p>Give a try on this&nbsp;:
</p>
<ul><li>Repair System Registry and Files
</li></ul>
<p>Find the Dos Prompt Right Click and Run as Administrator then&nbsp;:
Copy/Paste to Dos Window&nbsp;: DISM /Online /Cleanup-Image /RestoreHealth
then hit Enter
Note&nbsp;: DISM goes up to Microsoft for new ones.
</p>Any more ideas?...
2018-03-08T18:51:47-08:00longtalkerhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1085959<p>Any more ideas?...
</p>That is possible but not likely. I called for more help.
longtalker said
start Firefox in safe mo2018-03-03T06:45:28-08:00fredmcd-hotmailhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1084054<p>That is possible but not likely. I called for more help.
</p><p><em>longtalker <a href="#question-1207666" rel="nofollow">said</a></em>
</p>
<blockquote>
start Firefox in safe mode
</blockquote>
<p><a href="https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode" rel="nofollow">https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode</a>
</p><p>Safe Mode is a troubleshooting mode that
temporarily turns off hardware acceleration,
resets some settings, and disables add-ons
(extensions and themes). If the problem goes
away, that tells us one thing. If it does not,
that tells us something else.
</p>If you mean the programs that I have installed on my PC, there are none that spring to mind as immed2018-03-03T03:45:41-08:00longtalkerhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1084004<p>If you mean the programs that I have installed on my PC, there are none that spring to mind as immediate suspects - and doing a similar binary search to see which one might affect Firefox would be much more time consuming than was the case with disabling the addons.
</p><p>Also, I do find it strange that Chrome - the "control subject" in this case!- has no performance issues at all even though it runs on the same PC.. makes me think it's not an external program that's interfering with browser performance, but something in Firefox itself..
</p>Then you will need to check the rest of your programs.
2018-03-03T01:33:23-08:00fredmcd-hotmailhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1083952<p>Then you will need to check the rest of your programs.
</p>that's a good call. I disabled the AV and web-scanning & containment components of my Comodo Int2018-03-02T22:16:43-08:00longtalkerhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1083885<p>that's a good call. I disabled the AV and web-scanning &amp; containment components of my Comodo Internet Security Premium. Alas, Firefox is the same...
</p>As a test, disable your protection programs. Is the problem still there?
2018-03-02T21:46:40-08:00fredmcd-hotmailhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1083867<p>As a test, disable your protection programs. Is the problem still there?
</p>Thanks! I've disabled hardware acceleration, but it doesn't seem to change much. Will keep observing2018-03-02T19:09:34-08:00longtalkerhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1083846<p>Thanks! I've disabled hardware acceleration, but it doesn't seem to change much. Will keep observing it.
</p><p>Disabling addons one by one is something I've already done. did it with a binary search rather than one by one actually, to get to the faulty one quicker. But as I said, even in safe mode I experienced slowness, so I think an addon culprit is unlikely.
</p><p>I do have an AV, but it does not have any addons for Firefox. I am not sure what toolbars I could disable, as I only have the standard ones and the ones added by the Classic Theme addon, which is itself not problematic according to the Safe Mode test.
</p>It could be the work of one of your add-ons,
or it could be Hardware Acceleration.
How to disable H2018-03-02T18:33:05-08:00fredmcd-hotmailhttps://support.mozilla.org/zh-TW/questions/1207666#answer-1083829<p>It could be the work of one of your add-ons,
or it could be <strong>Hardware Acceleration. </strong>
<em><a href="https://support.mozilla.org/en-US/kb/forum-response-disable-hardware-acceleration" rel="nofollow">How to disable Hardware Acceleration</a></em> {web link}
</p><p>Type <strong>about:addons</strong>&lt;enter&gt; in the address bar to open
your Add-ons Manager. Hot key;
<strong>&lt;Control&gt; <em>(Mac=&lt;Command&gt;)</em> &lt;Shift&gt; A) </strong>
</p><p>In the Add-ons Manager, on the left, select <strong>Extensions. </strong>
Disable a few add-ons, then <strong>Restart Firefox. </strong>
</p><p>Some added toolbar and anti-virus add-ons are known to
cause Firefox issues. <strong>Disable All Of them. </strong>
</p><p>If the problem continues, disable some more (restarting
FF). Continue until the problem is gone. After, you know
what group is causing the issue.
Re-enable the last group <strong>ONE AT A TIME</strong> (restarting FF)
until the problem returns.
</p><p>Once you think you found the problem, disable that and
re-enable all the others, then restart again. Let us know
who the suspect is, detective.
</p>