I am using Waterfox and I was trying to install a theme from addons.mozilla.org and i got this error:
Download failed. Please check your connection.
I know that’s not the error because my internet is working, so I open the link behind the install button in a new tab. There it says:
Watefox prevented this site from asking you to install software on your computer
I looked at some other forum discussions and found out about a hotfix here:
But it still doesn’t work. I’m still getting an error. Does anybody know how to fix this?