
Popover/modal elements not rendering correctly
I'm using the latest stable version of Firefox (143.0.1 (aarch64)) on MacOS Tahoe and have been experiencing issues with these pop up elements not rendering correctly. Things like Facebook's Notifications dropdown or editing spreadsheets in Google Sheets, etc.
The element will only partially render, with some of the content clipped or hidden, almost like a z-index handling issue. Refreshing the page does. not fix the issue. The only way to see the content is to re-size the full browser window, forcing the browser to re-paint the page.
Same issue does not happen using Safari or Chrome that I've noticed.
I've tried reducing protections, disabling all extensions, clearing history & cache, etc.. I also fully re-installed Firefox (going from the Beta channel back to stable releases).
Anyone else experiencing this?