Created attachment 8589796 [details] about:support I confess, http://pasjans-online.pl/ is on my frequent browsing use cases, and it's not pretty to use with e10s on, the animations are really janky. I'm attaching my about:support, too.
Can you try to reproduce this with your addons disabled? We both have AdBlockPlus running but I don't think I'm seeing the issue you are. Even better... can you try this with a fresh profile?
Created attachment 8590350 [details] profile I can reproduce it on a clean profile, and I've kicked off the devtools profiler. The pink style computations seem to map where I feel jank.
Animations seem fine for me with latest Nightly on Mac 10.9.5. Axel, is this still a notable issue for you?
Nope, don't see it lately.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
You need to log in before you can comment on or make changes to this bug.