Issues w/ fullscreen since last update

I’m having an issue w/ fullscreen videos since the last update (22 days ago). My computer will enter Suspend mode, even if I make a video fullscreen. This happens when I’m watching Netflix, YouTube, or any other fullscreen video.

This is unusual; In the past, if I made a video fullscreen in Firefox, my computer would stay awake.

I’m wondering if this is related to a bug fix in the latest release: Bug 1853896, which addresses a previous bug in fullscreen video.

• Is there a way that I can fix this?
• Or, if not, can I roll Firefox back to an earlier version?

I’m running Firefox 120.0.1 (64 bit) on Linux Lite 5.6 My hardware is an old HP Chromebox connected to a display via HDMI.

Thank you Lemmy folks!