Update: Firefox 9 and 10 is available for download now! If you’re on a laptop and your Firefox 9 and 10 is slow or you’re experiencing a sudden lag jumping from one tab to another, or choppy video streaming, I doubt it is a memory leak issue, it is most probably the new ‘Hardware Acceleration’ feature.
If
your computer performance decreases significantly due to this hardware
acceleration feature, you ought to uncheck it, most laptop graphic card
are not designed to handle this kind of resource hungry process,
especially ff4.
Go to ‘Options’ and ‘Uncheck’ the ‘Use Hardware Acceleration When Available’
Simple, I don’t understand why Firefox made this feature default, I
do understand the readiness for html5 but that is still a long way to
go, maybe 1 year from now? After all, only a small percentage of laptop
comes with dedicated GPU from Nvidia and AMD. I can’t imagine using
Firefox 4 on a netbook.
Bookmark
I’ve just discovered that
my bookmark could be the culprit too, 5 years worth of links with no
spring cleaning ever, my bookmark is 400KB in size in the backup format.
That is one huge bookmark, deleting unwanted bookmarks really speed
things up. Now it is at 120KB in size, loading speed improves
significantly.
Cache
Clearing the cache did improve the
overall performance, for a significant noticeable improvement, you ought
to clear everything, from the password to cookies.
Test
Then again, it could probably be html5.
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