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Mozilla Firefox 12 is very slow on Ubuntu 12.04 LTS. I'm saying this because I'm using it side by side with PC. I doubt that hardware acceleration was enabled with Firefox on Ubuntu, even with css animation, it lags just like my grand dad. So, how can I check it?

I have enabled the option in advance tab. I have installed my GPU driver, however my ATI Radeon HD5650 GPU on my laptop is VESA: MADISON in system detail, is this all right?

I still can't change to Chromium because it is very buggy unlike Chrome, and with its boring add-on/extension, I don't think I would want to change soon. Opera is a good deal but it can't render my language correctly. So, Firefox is my only choice, even on PC, and it's the fastest browser on PC, and the slowest browser on Ubuntu. Please help me fix this, thanks.

Archer Allstars
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3 Answers3

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The problem is most likely with your graphics driver.

Attempt to install the ATI binary driver: https://help.ubuntu.com/community/BinaryDriverHowto/ATI

Nicolay Doytchev
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Did you copy/paste your old profile ?

I did and it was unbearably slow. I started with a fresh profile and it was fast again. Even after installing everything back again.

You can compare by creating another profile firefox -P -no-remote. Using a second profile help re-installing everything back too..

user55822
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Slow on rendering the web pages or on connecting to the web sites ?

If the latter, try to disable the multicast dns in /etc/nsswitch.conf

Massimo
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