STR: 1. open these sites: - https://testpilot.firefox.com/experiments/notes - http://www.cbc.ca/news/canada/british-columbia/ihit-on-case-of-body-found-in-langley-b-c-while-grass-fire-extinguished-1.4236848 2. switch between the two tabs using ctrl+tab or ctrl+arrow keys Expected: - tab switching should take the same amount of time regardless of which tab I'm switching from/to Actual: - on OS X I consistently see a delay when switching *form* the news site *to* the Test Pilot page, but do not see a delay switching tabs from testpilot to the news site.
At least on my OS X machine, this appears to be due to a slow paint on the Test Pilot site: https://perfht.ml/2wroH17 Anything interesting in there, jrmuizel?
Flags: needinfo?(mconley) → needinfo?(jmuizelaar)
This large rasterization is all in the radial gradient that's in the background of https://testpilot.firefox.com/experiments/notes. This will be handled by WebRender with glee.
(In reply to Jeff Muizelaar [:jrmuizel] from comment #2) > This will be > handled by WebRender with glee. \o/
Component: Keyboard Navigation → Graphics
Product: Firefox → Core
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