[Bug 119764] many sites unbrowseable with firefox

[chiefcooker]

Public bug reported:

Binary package hint: firefox

hy, many pages are really slow, so that scrolling isnt really possible.
i have a new ubuntu feisty install, and a new firefox 2.0.0.4 install, sys with standard repos upgraded today with synaptic.
ive no plugins installed, except jre, the latest 1.5 version with plugin and jdk
ive no extensions or skins in firefox
and when i have such a slow site open in ff, and switch to another window, for example the terminal, and want to move it fast, it is very slow, it performes very bad.
one example page is the blueprints site here on lauchpad.net
another example: http://www.power-portal.to

i have a p4 with 3,06ghz and ht
1gb ram
ati radeon 9000 with os radeon driver (glxgears says 1660fps)

i had this bug on edgy, with all ff version, and now on feisty ive this bug too. i hope this will help you to fix this bug, or help mozilla to fix their bugs.
if anyone need more infos, reply pls.
regards chief

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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many sites unbrowseable with firefox
https://bugs.launchpad.net/bugs/119764
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