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

I'm a frustrated newbie trying to download FF 8.0 on my Mac. I keep getting an error message saying an unknown error occurred and to save to a disk. Does anyone have a quick fix? Thanks!

more options

It also tells me that a download file could not be opened. It goes through all the download steps and I get the message at the very end.

It also tells me that a download file could not be opened. It goes through all the download steps and I get the message at the very end.

Chosen solution

All Replies (4)

more options

Chosen Solution

Get fresh installer from;

review installation guideline

more options

You're the coolest, thanks!