How to Enable Hardware Acceleration in FireFox 31

Please advise how to enable hardware acceleration in FireFox 31. All my graphics and other hardware/software is current and updated. I've also paired my Bookmark Toolbar down to under 20 entries.
FireFox is so sluggish that just a few open tabs cause the pausing "wheel of doom" every time I try to enter information or go to another part of the website. Sometimes the pauses are 5-10 seconds, sometimes a minute or more.
I do not have this issue on the other browsers that I use.
Thank you in advance for your help!

Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
You can also check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Multiple_profile_files_created
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).

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''Tyler Downer [[#answer-709801|said]]''
<blockquote>
Can you please type about:support into your address bar, press enter, and then copy the information there into this thread? Thanks!
</blockquote>
Thank you for your reply
here is the output
http://slexy.org/view/s2nYEMeTSg
'''Ok I this solution worked I just forgout to reboot my pc'''
http://askubuntu.com/questions/491750/force-enable-hardware-acceleration-in-firefox

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Message Edited by Sensi on 05-09-200705:20 AM
Message Edited by Sensi on 05-09-200705:20 AM

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But that command doesn't work in AIR, it only works in browser plugins.
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