Public bug reported:
Binary package hint: firefox
When the number of tabs open is the maximum the window width can
accomodate, it brings up scrolling arrows so you can open more. This is
typical behaviour. However, when these arrows are up, yet there are no
extra tabs to scroll through to (ie, you click the arrow and it moves
just a few pixels), firefox starts to use 100% CPU. The cpu drain goes
when you close a tab, or open a new one.
To reproduce:
- Open firefox
- Note cpu usage is low/normal
- Open just enough tabs to bring up the scroll arrows
- Note CPU usage is now 100% or near to it
- Close any one of the tabs or open a new one, and cpu usage goes back to normal
This can be reproduced with both full-screen and otherwise, but it's
easier to reproduce with full-screen as there's less calculation needed
to get the width/tabs right.
Ubuntu Version: Ubuntu 7.10, up to date as of Jan 19 2008
Firefox Version: 2.0.0.11+2nobinonly-0ubuntu0.7.10
** Affects: firefox (Ubuntu)
Importance: Undecided
Status: New
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cpu usage at 100% when firefox tabs equal width of window
https://bugs.launchpad.net/bugs/184281
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