This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Constantly losing application/file-type connections after update with no ability to fix

more options

I download csv files and can't get excell to open them automatically as it usually does, after updating Firefox. I can't fix in "Applications" under General Settings.

I download csv files and can't get excell to open them automatically as it usually does, after updating Firefox. I can't fix in "Applications" under General Settings.

All Replies (1)

more options

See Manage file types and download actions in Firefox under File types and download actions. It could be a problem with the MIME type that the web server uses for .csv files. A link to a problem file might be helpful.