Open Bug 1521456 Opened 5 years ago Updated 2 years ago

WebExtension popup windows have a black border at the top

Categories

(Firefox :: General, defect, P5)

66 Branch
Desktop
macOS
defect

Tracking

()

UNCONFIRMED

People

(Reporter: m, Unassigned)

Details

Attachments

(3 files)

Steps to reproduce:
Create a window with browser.windows.create with type "popup".

Actual results:
Window has a 2px border at the top between content and titlebar (border on root and #navigation-toolbox::after).

Expected results:
Window content is flush with titlebar.

Attached file Minimal extension
Attached image Actual result
Attached image Expected result
Priority: -- → P5
Product: WebExtensions → Firefox

I am not sure this is related, but in ABP extension we had a similar issue, with the black border all over the popup page, and only in dark mode.

We're fixing it by removing background-color from the body:
https://gitlab.com/eyeo/adblockplus/abpui/adblockplusui/-/merge_requests/472

If you think this should have a different ticket, please let me know and I'll create one.

Thank you 👋

Severity: normal → S3
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