Skip to content

feat(chrome-ext): enable use of the CSS Custom Highlights API for Firefox#2425

Closed
elijah-potter wants to merge 2 commits intoAutomattic:masterfrom
elijah-potter:enable-firefox
Closed

feat(chrome-ext): enable use of the CSS Custom Highlights API for Firefox#2425
elijah-potter wants to merge 2 commits intoAutomattic:masterfrom
elijah-potter:enable-firefox

Conversation

@elijah-potter
Copy link
Copy Markdown
Collaborator

@elijah-potter elijah-potter commented Jan 5, 2026

Issues

Fixes #2414

Description

In version 146, Firefox finally merged full support for the text-decoration field in the CSS Custom Highlights API. This was the last thing needed to switch Harper from the DOM-based highlight renderer on Firefox to the new one. This should hopefully resolve many of the 'highlight drift' issues Firefox users have been experiencing.

Note that this PR bumps the minimum required Firefox version to 146.

How Has this Been Tested?

Manually.

Checklist

  • I have performed a self-review of my own code
  • I have added tests to cover my changes

@elijah-potter
Copy link
Copy Markdown
Collaborator Author

It looks like we need to wait until the next version of Playwright releases (which will support the updated version of Firefox).

@elijah-potter elijah-potter closed this by deleting the head repository Jan 12, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

Highlighting is Visually One Word/Phrase Off on Bluesky

1 participant