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

Browswer Default

more options

I have installed Firefox as my default browser on a new iMac, but every time I open Firefox (after quitting it or shutting down my computer) it asks me AGAIN if i want to set Firefox as my default browser. If I say "yes", I have to start all over again setting My Yahoo as my home(opening) page and reset all the bookmark shortcuts I've put into my bookmarks tool bar.

I've confirmed in Firefox, in Safari, and in System Preferences that Firefox is set as my default browser. I've uninstalled and reinstalled Firefox.

I have installed Firefox as my default browser on a new iMac, but every time I open Firefox (after quitting it or shutting down my computer) it asks me AGAIN if i want to set Firefox as my default browser. If I say "yes", I have to start all over again setting My Yahoo as my home(opening) page and reset all the bookmark shortcuts I've put into my bookmarks tool bar. I've confirmed in Firefox, in Safari, and in System Preferences that Firefox is set as my default browser. I've uninstalled and reinstalled Firefox.

All Replies (2)

more options

Macs: Make sure you install Firefox properly and that you do not run Firefox from within the DMG (Disk Images) file. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

more options

Go to FIrefox settings and uncheck

"Always check if firefox is your default browser"