Just look on screenshot (bright text in search field and button). Steps to reproduce: 1. Enable dark GTK+ theme (for ex., Xfce-dusk). 2. Open about:newtab page.

Just set #2e3436 color (default in gtk3 build + Adwaita theme) for GTK+ builds.

Comment on attachment 8456033 [details] [diff] [review] Example patch You should just use color:inherit here. Also, there's no reason why this should be Gtk-specific.

(In reply to Dão Gottwald [:dao] from comment #2) > Comment on attachment 8456033 [details] [diff] [review] > Example patch > > You should just use color:inherit here. Oops, I missed that the button has a white gradient as its background image. Since the gradient's opacity goes up to 80%, it might also make sense to use color:black here. (Although in practice it shouldn't matter since in this case color:inherit resolves to black anyway.)

(In reply to Dão Gottwald [:dao] from comment #2) > Comment on attachment 8456033 [details] [diff] [review] > Example patch > > You should just use color:inherit here. Also, there's no reason why this > should be Gtk-specific. I updated example patch with account recommendations. But I am not sure that black color is good choice.

Reproduced on Firefox 31 beta 7 by using a High Contrast theme under Win 7, 64-bit.

Thanks for the patch.

Comment on attachment 8456064 [details] [diff] [review] Example patch 2 (normally I would ask whoever on the desktop team was involved with a change about uplift, but Dão is on PTO and I think this is trivial and safe enough that I might as well just request uplift myself) Approval Request Comment [Feature/regressing bug #]: bug 962490 [User impact if declined]: unreadable new tab search box on certain OS themes [Describe test coverage new/current, TBPL]: none [Risks and why]: none, has lots of baking on nightly and now aurora, fix is specific to the buttons and input field on the new tab page [String/UUID change made/needed]: none [Approval Request Comment] If this is not a sec:{high,crit} bug, please state case for ESR consideration: unreadable text in primary UI, which has caused multiple people to file bugs User impact if declined: see above. Fix Landed on Version: 33 Risk to taking this patch (and alternatives if risky): none, see above String or UUID changes made by this patch: none See https://wiki.mozilla.org/Release_Management/ESR_Landing_Process for more info.

Comment on attachment 8456064 [details] [diff] [review] Example patch 2 Approved for beta and ESR31.

https://hg.mozilla.org/releases/mozilla-beta/rev/6fd1ba78d246 https://hg.mozilla.org/releases/mozilla-esr31/rev/e19bbe8a8167

Verified fixed on Firefox Aurora, build ID:20140817004001 and Firefox 32 beta 8, build ID: 20140818191513. The text from the search field is now visible (white) while using a dark theme.

Verified fixed on Firefox 31.1.0 ESR (buildID: 20140825060242).