2062412 - [Nova] Nova Private Browsing theme disabled by built-in "Firefox Theme"s

Status: NEW

(Firefox :: Theme, defect, P3)

Description

[Nika Layzell [:nika] (ni? for response)]

STR: Select one of the new built-in "Firefox Theme"s (like "Spark" or "Ash") through the new widget in about:addons.

ER: When opening a private-browsing window, the new Nova private browsing theme is loaded, like it is when loading other built-in themes like "Dark" or "Light".

AR: The built-in "Firefox Theme" overrides the theme of the Nova private browsing window.

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This is my expectation of what the behaviour should be based on bug 2051708. It seems unfortunate that customizing the toolbar colours with a built-in "Firefox Theme" would disable one of the new Nova features.

(probably out of scope) It might also be nice to provide an option to allow the user to disable their custom theme in private windows (or even specify a different theme to load in private windows?). This could perhaps be something like the "Run in private window" toggle normal extensions have, but for theme extensions?