Recent answers to Can't hibernate with Firefox (21.0) running. WinXP OS.https://support.mozilla.org/fa/questions/9731812013-10-03T06:24:02-07:00Thanks, ComputerWhiz.
The problem turned out to be the add-on called "Download YouTube Videos as MP42013-10-03T06:24:02-07:00SolitaireToohttps://support.mozilla.org/fa/questions/973181#answer-485921<p>Thanks, ComputerWhiz.
</p><p>The problem turned out to be the add-on called "Download YouTube Videos as MP4 1.7.9". When I disabled that add-on, the computer hibernated OK.
</p><p>Thanks again.
</p><p>SolitaraireToo
</p>If the above doesn't work, please try updating Firefox to the most recent version.
2013-10-03T05:38:59-07:00ComputerWhizhttps://support.mozilla.org/fa/questions/973181#answer-485886<p>If the above doesn't work, please try updating Firefox to the most recent version.
</p>Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which di2013-10-03T05:38:32-07:00ComputerWhizhttps://support.mozilla.org/fa/questions/973181#answer-485885<p><strong>Try Firefox Safe Mode</strong> to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
</p><p><em>(If you're not using it, switch to the Default theme.)</em>
</p>
<ul><li> On Windows you can open Firefox 4.0+ in Safe Mode by holding the <strong>Shift</strong> key when you open the Firefox desktop or Start menu shortcut.
</li><li> On Mac you can open Firefox 4.0+ in Safe Mode by holding the <strong>option</strong> key while starting Firefox.
</li><li> On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
</li><li> Or open the Help menu and click on the <strong>Restart with Add-ons Disabled...</strong> menu item while Firefox is running.
</li></ul>
<p><img class="wiki-image frameless" src="https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/gallery/images/2013-07-08-18-32-01-a08d8d.png" alt="FirefoxSafeMode" width="520">
</p><p><em>Once you get the pop-up, just select "'Start in Safe Mode"</em>
<img class="wiki-image frameless" src="https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/gallery/images/2012-07-27-09-26-19-ee761a.png" alt="Safe Mode Fx 15 - Win" title="">
</p><p><em><strong>If the issue is not present in Firefox Safe Mode</strong></em>, your problem is probably caused by an extension, and you need to figure out which one. Please follow the <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> article for that.
</p><p><em>To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.</em>
</p><p>When Firefox is in Safe Mode, please try hibernating your Windows XP computer.
</p><p>Please report back with the results soon.
</p>
<hr>
<p>Are you using Windows XP service pack 3?
</p>I am not able to test whether its a problem for many as i don't have windows XP, think you may have 2013-10-03T05:31:48-07:00anushbmxhttps://support.mozilla.org/fa/questions/973181#answer-485883<p>I am not able to test whether its a problem for many as i don't have windows XP, think you may have to wait for a little time.
</p>