FireFox 31 has been extremely sluggish on my computer. When I try to open a new tab or browser, the "wheel of doom" appears and the action pauses for 15 seconds to one minute. At the same time message will temporarily pop up that says "FireFox is not responding." I should add that I followed the advice on these boards, and made certain my graphics and all other software are updated; I paired down the number of Bookmark Toolbar tabs to under 20. However, the problem persists. The issue is NOT with the computer -- the other browsers are not experiencing sluggishness. Please provide the process for manually enabling hardware acceleration in FireFox 31, as well as any other tips not already mentioned above. Thank you!