Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

Hello,

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Thank you!

Here's the screenshots

What about Safe Mode?

See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

Tried that, stayed the same

TheQuickSlash said

Tried that, stayed the same

What have you tried so far?

I tried Safe mode, Clearing cookies and cache, refreshing Firefox, nothing worked so far, updating my graphics card drivers right now

Updating my graphics card didn't work sadly. :(