Web Display on Fx Corrupted with latest updates

Describe the problem you’re having:
With the last two updates, web display on firefox will quickly flash a screen with error messages and then at times display only a partial screen. When selecting preferences it quickly flashes some messages and then always displays a partial screen.

When running on chrome, everything seems to work fine.

This happens on both Fx 71 and the nightly version.

If possible include steps to reproduce the problem:
Launch ttrss on Fx.

tt-rss version (including git commit id):
Tiny Tiny RSS v19.12-0d6add5d7

Platform (i.e. Linux distro, PHP, PostgreSQL, etc) versions:
Fedora 31

Please provide any additional information below:

Thanks for your post. See the last few posts in this thread:

https://community.tt-rss.org/t/site-wont-load-on-macos-safari-or-ios-mobile-browsers/3007/29

This issue was just recently identified but the cause hasn’t been identified yet.