[Note]: - Screenshot: http://i.imgur.com/Rr8t3YY.png [Affected versions]: - latest 52.0a1 Nightly - latest 51.0a2 Aurora [Affected platforms]: - Windows 10 x64 - Ubuntu 14.04 x86 - Mac OS X 10.12 [Steps to reproduce]: 1. Open Firefox 2. Go to https://people.mozilla.org/~fqueze2/webrtc/ 3. Select "Audio & Video" and share the devices. 4. Open a new tab. 5. Observe the favicon of the tab where the call is active. [Expected result]: - The favicon changes to a webcam and back. [Actual result]: - The webcam favicon is very faded compared to the one from the identity panel. See the screenshot for a better understanding of the issue. [Regression range]: - This is not a regression.

(In reply to Cornel Ionce [QA] (:cornel_ionce) from comment #0) > [Regression range]: > - This is not a regression. Looks a lot like a regression to me, I'm pretty sure this sharing icon wasn't partially transparent when I landed it in bug 1275262. Could you please find the regression range?

Mozregression narrowed down the regression range to this push: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=c0ca8b0d966ee28bc6542a762f8a592cf76054d8&tochange=a481cba452933d5e7571fce7733b1ad7d41f493b Bug 1304708 was uplifted to Aurora51 as well, so that seems like the most likely candidate.

The fix will likely be similar to what we did in bug 1303339.

Comment on attachment 8802181 [details] [diff] [review] patch Review of attachment 8802181 [details] [diff] [review]: ----------------------------------------------------------------- Thanks!

Pushed by dgottwald@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/72a82d357f15 Stop using the fill filter for tab-sharing-icon-overlay, use designated sharing icon variants instead. r=florian

Comment on attachment 8802181 [details] [diff] [review] patch Approval Request Comment [Feature/regressing bug #]: bug 1304708 [User impact if declined]: see comment 0 [Describe test coverage new/current, TreeHerder]: n/a [Risks and why]: I missed updating this use case of notification-icons.svg in bug 1304708. Simple fix, low risk. [String/UUID change made/needed]: none

Comment on attachment 8802181 [details] [diff] [review] patch Fix a regression related to webcam favicon. Take it in 51 aurora. Hi :cornel_ionce, Can you help to verify this?

Sure, I'm confirming the fix for this issue across platforms using: * latest 51.0a2 Aurora, build ID 20161021004016 * latest 52.0a1 Nightly, build ID 20161020030211.