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Making moves
Status: Trending idea

(Copying this over from the Ideas site.)

Windows provides users with the ability to customize an accent color for window titlebars.
Firefox should support this accent color for the tab strip.

On Windows 10, the option is enabled under:
Settings > Personalization > Colors > Show accent color on the following surfaces > Title bars and window borders

The color for inactive windows can also be adjusted via the registry, and Firefox should also use that color when it has a value to support better accessibility.

Familiar face

For what it's worth, the default theme on Linux Firefox is derived based on the GTK theme, I don't see why the Windows version shouldn't incorporate the Windows Them Color as well.


New member

Windows version color is not available

Status changed to: Trending idea
Community Manager
Community Manager

Hey all,

Here with an exciting update…

Your idea has been upgraded to a “Trending idea.” This means it’s now one step closer to reaching our internal teams for review—learn more about The Idea Journey.

Please keep the conversation going (the more details, the better) and stay tuned for updates 😃

-The Community Team

Making moves

Yes please! The accent colour helps identify which window is focused/active.



Both Chrome and Edge utilise the Windows accent colour (with dark theme too) support this, BUT their title bars remain coloured, even when they're inactive, which is non-standard:


The only clue that Firefox is the focused app is a very fine 1px border (which doesn't show when maximised):


Thanks team!

New member

This is basically firefox bug 1704131


New member

Hard to understand that it needs a bugzilla entry (with many dupes) and an "idea" with many votes to (hopefully) finally fix something again that has willingly been broken...

Making moves

@JonWhat do we need to do to get this promoted from "Trending" to "In development"?  This had hundreds of votes on the old Crowdicity site, and that Bugzilla link above is 2 years old.  It's incredibly frustrating to see other ideas with way fewer votes getting development priority above this.

Making moves

Seeing that other browsers like Chrome seem to support the Windows accent color by default, or at least give the users the ability to easily customize said color, like Vivaldi, I do think that it's important for Firefox to also support this. It might not seem to be much, but the use of this default cyan color makes Firefox stand out, and not everyone wants or is able to use increasingly convoluted UserChrome.css files to try to fix this.

New member

Firefox active tab color should match Windows active window title color

So I can see if my Firefox window active tab has keyboard focus or not.

Community Manager
Community Manager

Potentially related idea here: Default Theme Should Respect System Accent Color 

@mozzy if this aligns with what you're asking, we can merge the threads together to keep the conversation focused in one space.

If not, all good.

Thanks again for joining Connect and sharing feedback 🙌