The fill colour for the search bar should be #FFFFFF. Right now it's the same colour as the New Tab background colour (#f9f9fa) so it looks disabled.

Ah doh, pretty sure this regressed from bug 1418090. https://github.com/mozilla/activity-stream/pull/3982

Commit pushed to master at https://github.com/mozilla/activity-stream https://github.com/mozilla/activity-stream/commit/bbb3a6d41f922fb2aaf73e38948a4f1529755ac0 Fix Bug 1447752 - searchbox background color -> $white

[Tracking Requested - why for this release]: phlsa says "I’m a bit worried that this will look like it’s disabled to users, causing them to not search there." … "Then we just need to make sure that the fix also gets uplifted to beta"

Please request Beta approval on this when you get a chance.

r1cky, we'll need a new patch for beta 60 as we probably won't uplift dark theme. Could you put together a PR against https://github.com/mozilla/activity-stream/tree/firefox-60

Build ID: 20180402111808 User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 I have verified that this issue is no longer reproducible on Windows 10 x64, Arch Linux and Mac 10.13.3 with the latest Nightly build (61.0a1) installed. Now the search bar color is displayed correctly.

Comment on attachment 8964379 [details] Bug 1447752 - Search bar colour fill is wrong in Nightly. https://reviewboard.mozilla.org/r/233094/#review238524

Comment on attachment 8964379 [details] Bug 1447752 - Search bar colour fill is wrong in Nightly. Approval Request Comment [Feature/Bug causing the regression]: Undesired color set in bug 1418090 [User impact if declined]: Gray background instead of white could lead users to think searching is disabled [Is this code covered by automated tests?]: No [Has the fix been verified in Nightly?]: Yes, comment 7 [Needs manual test from QE? If yes, steps to reproduce]: No [List of other uplifts needed for the feature/fix]: This needs to land after bug 1448394 just as an artifact of how we export changes. [Is the change risky?]: No [Why is the change risky/not risky?]: One line css change setting an explicit color. The exported change is large due to per-platform styles and source .map files, but the original source change is small: https://github.com/mozilla/activity-stream/commit/2c94813f73db427d3ffcbd47534cbd23731b7407 [String changes made/needed]: None

Comment on attachment 8964379 [details] Bug 1447752 - Search bar colour fill is wrong in Nightly. activity stream regression fix, verified in nightly, approved for 60.0b10

I managed to reproduce the initial issue on 61.0a1 (2018-03-21). I can confirm that the 60.0b10 (20180404171943) build is verified fixed across platforms (Windows 10 x64, Ubuntu 16.04 x64 and macOS 10.13.3). The search bar is now properly displayed and its color is #FFF, in both normal and highlighted modes.