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Today's update of Firefox to the 29 version makes browsing very slow.

For example Firefox incredibly lagging when I am zooming or moving on google maps.

Does anyone the same problem? How can I speed it up?

My OS: Ubuntu 12.04, x64

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Do you have any plugins/addons installed and if yes, which ones? – bender May 4 '14 at 23:54
Have the same problem (Ubuntu 12.04.4). Reset didn't help. Have all the things turned to "yes" though in unity_support_test -p... – scofandr May 12 '14 at 8:39
up vote 2 down vote accepted

You could try to reset Firefox to factory defaults, this is actually something Firefox proposes to do if it detects that the start-up takes too long. Beware, however, this procedure will delete all your installed add-ons and your search engine settings.

To do a factory reset, follow the instruction on this page.

Another thing you could check is whether hardware graphics acceleration is set up correctly. The answer to this question describes how to do that.

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Well, that works for me! Thanks! – madox2 May 5 '14 at 13:18
I propose to first test this by first disabling all addons before reseting it via the 'help'->'Restart with addons disabled' to check if there will be any difference. – Parto May 12 '14 at 8:59

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