Broken font rendering in Tor Browser (uneven and inconsistent spacing between glyphs)
Tor Browser 9.0.4 (based on Mozilla Firefox 68.4.1esr) (64-bit)
Example URL of a poorly rendered webpage: https://www.erowid.org/general/about/about.shtml
It's the worst with the smaller text. I'm attaching a cropped screenshot of the area where it's in particular easy to see. 2nd image = the same but with underlined areas with the most extreme rendering errors. (by the way, headers are unaffected because they aren't actually text, they are images)
AFAIK, the text should be rendered the same way on all platforms to avoid fingerprinting. But if this is platform specific bug, then I can provide any info about my hardware/OS/etc. privately to help solving this bug.
The same page renders just fine in Firefox 72.0.2 on the same system.