[akersten]

Something's definitely misbehaving in Firefox on the page. Using a mouse to highlight text in a comment and then trying to move the highlight to the next paragraph, the selection jumps to the first paragraph as soon as the cursor leaves the `span` of each paragraph.

From a quick look at the DOM, I'd bet dollars to donuts it's the weird combination of custom WebComponents and the #shadow-root stuff and other various markup excess that they just didn't bother to test with Firefox. Whether it's a bug with Firefox itself and how these elements are handled, I guess would need some investigation. But if it were my web app, I'd probably just fix it instead of blaming the browser.

Screen capture: https://imgur.com/RmoSZRB

[masswerk]

The text isn't rendering at all in Safari/Mac. (Momentarily too lazy/tired to find out why. 2am here.)

[masswerk]

Why is a simple, factual report downvoted? Should I add a screenshot?

[floatingatoll]

If you create a new Firefox profile alongside your usual one, and do not change any settings, can you reproduce the copy paste issue you’re seeing?

[imPndy]

im also getting it after trying with troubleshooting mode on (disables extensions, themes and custom settings.) this is on windows and latest firefox 90.0.2

https://i.imgur.com/y5lkfHI.gif

[floatingatoll]

Huh, TIL. I suppose I'd recommend a report to Webcompat.

[ceejayoz]

Tried with a brand new Firefox profile, on OSX. Still wonky.

Screencast: https://youtu.be/XGTyDQGTC4E