[SOLVED] Firefox does not load new location

Issue

Currently I'm using Ubuntu 18.04.5 with Mozilla Firefox 86.0 in safe-mode, when I provide a new location nothing happens. There is no error page or error message, It does not work when I do google.com or when I select a bookmark, or even go to about:preferences. Chrome does work fine, and I tried re-installing without result. Does anyone know how I can fix this problem or provide some keywords to search for people with the same problem?

Same holds for Mozilla Firefox 88.0a1. Same holds for a newly created profile via firefox -P.

Solution

I re-installed Citrix Workspace, but now without App protection. It somehow affected Firefox, although Firefox was running outside Citrix.

Answered By - Michiel