I'm unable to open any download with Firefox, it works with Explorer. What should I do before I switch browsers?
Using Windows XP with security settings allowing downloads
Wšykne wótegrona (1)
Does the download finish?
Where are you saving the download to?
What happens when you try and open the file?
Where are you downloading the file from?
Need a lot more info to try and help.
First step is to try running in Safe Mode https://support.mozilla.com/en-US/kb/Safe+Mode and see if that resolves it