We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

I have a new macbook and downloaded the firefox browser but i can't open the .dmg file. Window pops up saying not recognized.

  • 3 fhreagra
  • 1 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó cor-el

more options

Setting up my new macbook pro and I went to install the firefox download currently available on the mozilla site and I double-click the firefox .dmg download file and a window pops up and says "The following disk images cannot be opened. Firefox20-1.0.dmg. Reason: not recognized.

Nothing else comes up as an option.

What should I do?

Thanks

Steve

Setting up my new macbook pro and I went to install the firefox download currently available on the mozilla site and I double-click the firefox .dmg download file and a window pops up and says "The following disk images cannot be opened. Firefox20-1.0.dmg. Reason: not recognized. Nothing else comes up as an option. What should I do? Thanks Steve

All Replies (3)

more options

Hello stevelopez, try download from : http://www.mozilla.org/en-US/firefox/all/

see also : Install Firefox on Mac


thank you

more options

Hi,

I downloaded the file following your link, but now firefox doesn't play flash files. It says plugin needed or sometimes there's a black screen where the flash file is located.

However other browsers like Chrome and safari play the files perfectly fine.

What should I do?

Thanks,

Steve

more options

Try to delete the pluginreg.dat file in the Firefox Profile Folder and maybe addons.sqlite as well to reset the plugin registry databases.

You can use this button to go to the Firefox profile folder:

  • Help > Troubleshooting Information > Profile Directory: Show Folder

See "Re-initializing the plugins database": https://support.mozilla.org/en-US/kb/troubleshoot-issues-with-plugins-fix-problems