This is an emerald bug. Removing emerald (and keeping compiz effects on) resolves this issue. Reinstalling emerald brings back the slow firefox behavior. When using emerald, the theme engine plays a role. Themes using the pixmap engine make firefox very responsive, almost as if there's no issue. The line engine is also decent. However, using the vrunner and other engines makes firefox tab switching slow. It's not just tab switching either.. for example, navigating items in Google Reader is slow depending on emerald/engine as well.
On Ubuntu 7.10 + all updates (also present when using the 8.04 Hardy kernel/nvidia drivers) System: HP Pavilion dv6700 Notebook Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz 3GB RAM NVIDIA GeForce 8400M GS (256MB) -- Slow switching tab in firefox/opera when the desktop effects are enabled in Gutsy Gibbon https://bugs.launchpad.net/bugs/144216 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
