firefox starts in light mode after reboot, until I switch to light and then dark again

[colemickens]

Hi!

After reboot, Firefox always starts in Light mode. I have to switch to Light mode, then back to Dark mode, with Firefox open, for it to render in the correct theme.

I also use two firefox profiles (one launches with Firefox Nightly, the other with Firefox Stable, if it matters) and the same is true again for the second profile. Even if I have opened Firefox Nightly, perform the workaround, I have to again toggle and toggle back to get the second instance to go dark as well.

[Ciphreon]

Can confirm. It appeared after a recent update (maximum 2 weeks).