Closed Bug 1706290 Opened 4 years ago Closed 4 years ago

On Linux, privacy.resistfingerprinting interferes with about:newtab dark mode styling

Categories

(Firefox :: Theme, defect)

Product:
Firefox
Component:
Theme
Version:
Firefox 88
Platform:
Desktop
Linux
Type:
defect

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1450398
Tracking Flags:
Tracking Status
firefox88 --- affected
firefox89 --- affected
firefox90 --- affected

People

(Reporter: filippo27998, Unassigned)

References

Details

Using privacy.resistfingerprinting appears to interfere with dark theme styling using a GTK dark theme on some system pages (notably, about:newtab), as well as extension tooltips.

I imagine that by design resistfingerprinting is supposed to prevent sending theming information to websites, however it shouldn't really work like that on system pages. It is probably something that depends on the referenced bug which used to affect all Linux users. If I disable privacy.resistfingerprinting, dark mode on about:newtab works properly.

Depends on: 1546540
Depends on: 1705930

I wonder if we should also use -moz-toolbar-prefers-color-scheme from bug 1701691 for about:newtab?

Flags: needinfo?(mstriemer)

This issue also occurs on Windows with a High Contrast Black theme enabled. I was able to reproduce this issue in Firefox 88, Beta 89.0b2 and Nightly 90.0a1 (2021-04-21).

Severity: -- → S3
Status: UNCONFIRMED → NEW
Has Regression Range: --- → no
Has STR: --- → yes
status-firefox88: --- → affected
status-firefox89: --- → affected
status-firefox90: --- → affected
Component: New Tab Page → Theme
Ever confirmed: true

Seems to be a duplicate of Bug 1705930.

Status: NEW → RESOLVED
Closed: 4 years ago
Resolution: --- → DUPLICATE

This is really more of a dupe of 1450398 - We should abide by the user's preference on system pages but we currently don't. That's a bug we should fix.

Thank you for correcting this.

Flags: needinfo?(mstriemer)
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