If you have customized keyboard shortcuts in RStudio Server Pro, using Firefox, and seeing issues where keys are not being registered properly, you may need to edit the Firefox setting privacy.resistFingerprinting.
A potential fix to the issue is:
- Navigate to the about:config in Firefox. Type about:config in the search bar and hit enter
- Search for privacy.resistFingerprinting
- If the value is set to true, set it to false
There is more information on this here - https://wiki.mozilla.org/Security/Fingerprinting