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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox forgets it is the default browser! Win 10 x 64

  • 1 reply
  • 2 have this problem
  • 6 views
  • Last reply by FredMcD

joecrow5
joecrow5
more options

Firefox has always been my default browser but starting a couple of days ago whenever I start Firefox following a system boot/reboot it asks me if I want it to be the default. If I click on yes it only retains the setting till the next system start then the question is asked again. If I say no and check in the options it claims it is not set as the default browser but if I check in Windows system setting default apps. it is shown as the default browser! I updated Firefox from ver. 42.0 to 43.0 but it made no difference.

Firefox has always been my default browser but starting a couple of days ago whenever I start Firefox following a system boot/reboot it asks me if I want it to be the default. If I click on yes it only retains the setting till the next system start then the question is asked again. If I say no and check in the options it claims it is not set as the default browser but if I check in Windows system setting default apps. it is shown as the default browser! I updated Firefox from ver. 42.0 to 43.0 but it made no difference.

Chosen solution

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

Read this answer in context 👍 0

All Replies (1)

FredMcD
FredMcD
more options

Chosen Solution

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.