Firefox unable to download any file when I use "Choose destination" option. With "Save to folder" option it's works well.
System: Ubuntu 20.04, KDE Plasma 5.18.5. Firefox 84.02.
I found many related questions but no one answer help me. I tried to disable addons, create new profile, I'm unable to download file even with firefox-dev binary downloaded from mozzila page. But with chromium I have no problems. My permissions to download folder:
drwxrwxrwt 3 biblbrox biblbrox 12K янв 27 20:28 Downloads
I resolve this by installing patched firefox from ubuntu 18.04 repository(this question: https://askubuntu.com/questions/1304442/how-to-use-firefox-from-18-04-repositories-in-ubuntu-20-04/1304485#1304485)