Black square in options tab. #3506

Can you try reloading the page? Firefox’ add-ons page is a little buggy sometimes

I reloaded the page, and restarted both browser and pc. It's still not working.

But when I open the options tab for the first time in the session, it shows the options for a sec and the black square appears.

I have the same configuration except it's on Mac and the language is English:

<img width="775" alt="Screen Shot 2020-08-28 at 01 02 47" src="https://user-images.githubusercontent.com/1402241/91499520-3943bd80-e8ca-11ea-98db-4fe1ab832fa4.png">

Can you open this page directly and see if it works there?

moz-extension://e9494ddf-4135-504b-90e9-82ced8cb8b15/options.html

Possible? https://support.mozilla.org/en-US/questions/1034763

This is not a bug we can fix, it's likely to be another extension conflicting. If you find out which extension it is, or how you fix it (a new profile will certainly fix it), please leave a comment.

I created a new profile without themes and extensions (only refined-github). It still occurs. But i'll send a report to firefox.