Steps to replicate issue please.

Hi drlinmorel,

Would you be able to provide an example of a website you are on when the problem occurs, and what button you are using to upload files?

To me the same happened on: https://bazar.bg/ https://drive.google.com/ https://www.mobile.bg/ https://www.olx.bg/

While trying to upload a file, a popup window appears to select the desired file; then I press Open and nothing happens. It started only after recent update(s). I haven't tried uploading on any other site, but I assume it's a general upload issue, not website specific. There is no problem to perform the same operation on Google Chrome.

this is unbelievably annoying. it makes working with firefox impossible if what you are doing is trying to write a newsletter or maintain a website.