It is funny you just brought this subject up Doverseer. I have a perfectly good laptop that is only 2 years old but unfortunately like 90% of the PC's out there Firefox has blacklisted my graphics card.
Over the last few months I have been experiencing many weird browser performance issues with every update from every browser vender. For example Google Chrome with WebGL enabled games started to run slower than the same game with canvas 2d. Also canvas 2d games started to get slower with each new update. Since the new Firefox 12 update this week canvas 2d games started running so slow that they are now unplayable in Firefox. I couldn't even play a game on the arcade without my browser freezing, and crashing. This is not just limited to games but also websites. It is like all of the browser venders are trying to force us to buy new PC's. If you try to contact a browser vender about this they just say update your drivers, or you got a crappy graphics card. That is if they respond to you at all. If your drivers are all up-to-date, and if you got a graphics card that is fused to your mother board you cant change it.
Anyway, this has all pissed me off. I can't afford to buy a new PC right now so I did some searching, and found a solution. This could destroy your computer so I wouldn't recommend doing this especially if your PC is still under warranty because it will then be void. But if your PC is not under warranty, and to use the internet your only other alternative is to buy a new PC then you have nothing to loose by trying this.
First start up your Firefox browser, then type about:config in Firefox�s address bar and make the following changes:
1. To enable WebGL, set webgl.force-enabled to true.
2. To enable Layers Acceleration, set layers.acceleration.force-enabled to true.
3. To enable Direct2D in Windows Vista/7, set gfx.direct2d.force-enabled to true.
Then cross your fingers, restart Firefox, and try running a WebGL application.
By doing this I have increased my Firefox browser performance by over 250% in canvas 2d, and now WebGL works with Firefox. Also all other browsers Chrome, IE9, Opera, and Safari are preforming much faster. I just hope my PC lasts long enough for me to save up for a new one.
Like I said I was left with now other choice because of the browser venders latest updates my PC became useless. But now everything runs great once again.
This is all a real shame that this is happening because the majority of people in this world wont buy new PC's. So I am starting to wonder were this is going to leave us as html5 game developers. The future looks expensive for everyone.