Numbers on Desmos graph axes appear glitched (gfx.canvas.accelerated) about betterfox

[yokoffing]

I can't reproduce on my Macbook with Firefox Stable or Nightly.

I won't be home for another week to test on my Windows machine. I will test again when I'm back from holiday.

[axydavid]

can confirm from my firefox dev windows 11:

This issue is widespread across various websites, suspect maybe when used in correlation with canvas.

[axydavid]

UPDATE:

My suspicions were correct!

fix:
change
user_pref("gfx.canvas.accelerated", true);
to
user_pref("gfx.canvas.accelerated", false);

restart ff

[yokoffing]

@axydavid I have access to my Windows machine now.

This issue is widespread across various websites

Can you list the websites? It may help troubleshoot, or to help locate or create a Bugzilla ticket.

https://www.desmos.com/calculator

On Windows 11 with a new FF Stable profile and gfx.canvas.accelerated = true (not using the user.js), this does not occur.

I also cannot reproduce on Firefox Nightly with the user.js.

Can you say more on your graphics card, processor, and age of your machine?

[yokoffing]

@cmrss2 If you review the Fastfox links for this pref, there was an issue reported back in February for a Firefox Nightly on Surface Pro 8. gfx.canvas.accelerated is negatively affecting certain Windows machines. (This pref is default everywhere but Windows.)

Please add user_pref("gfx.canvas.accelerated", false); to your overrides for now. I'll consider removing this for future iterations.

You can also check that gfx.canvas.accelerated.force-enabled is the default, false.

[axydavid]

i use integrated intel graphics, as i'm using a laptop, i7-11390H. The websites affected are all websites that use canvas. It also seems that only text rendering is affected, the drawings are fine.

[yokoffing]

@axydavid As of version 116, we've commented out gfx.canvas.accelerated by default.