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.

Windows 11 Firefox Gmail/Mailto

  • 3 replies
  • 1 has this problem
  • 38 views
  • Last reply by AliceWyman

djmb
djmb
more options

Using Windows 11 and want to set Gmail as my mailto option when clicking on email links on websites. Under Firefox/Settings/Mailto I no longer see the option for Gmail, not an expert on technical matters so I have googled the problem but still can't find a solution. Do I need to find an App on Windows or perhaps an Extension within Firefox, feeling completely lost at the moment.

Using Windows 11 and want to set Gmail as my mailto option when clicking on email links on websites. Under Firefox/Settings/Mailto I no longer see the option for Gmail, not an expert on technical matters so I have googled the problem but still can't find a solution. Do I need to find an App on Windows or perhaps an Extension within Firefox, feeling completely lost at the moment.

Chosen solution

Many thanks for your reply.

Eventually found my handlers.json files, all five of them are corrupt. Renamed the first one handlers.json.bak to see if it made any difference and it became an unreadable Adobe Acrobat file. Feeling rather lost now.

Later. I've refreshed Firefox which seems to have solved the problem, Gmail is back as a Mailto option and I just have one Handler File with the corrupt ones apparently deleted.

Thanks for your advice, I learn something new every day.

Read this answer in context 👍 0

All Replies (3)

user104147805413306348376805769878442569366
user104147805413306348376805769878442569366
more options

Hi djmb, See if something in this article will help - Change the program used to open email links

If not, you may have to rebuild your Applications Handler - Type (or paste) about:support in the address bar and press Enter under Application Basics next to Profile Folder click the Open Folder button Close Firefox.

In your Profile Folder rename the file handlers.json to handlers.json.bak

Close the folder window and launch Firefox. Your Applications handler will be reset to it's defaults.

djmb
djmb Question owner
more options

Chosen Solution

Many thanks for your reply.

Eventually found my handlers.json files, all five of them are corrupt. Renamed the first one handlers.json.bak to see if it made any difference and it became an unreadable Adobe Acrobat file. Feeling rather lost now.

Later. I've refreshed Firefox which seems to have solved the problem, Gmail is back as a Mailto option and I just have one Handler File with the corrupt ones apparently deleted.

Thanks for your advice, I learn something new every day.

Modified by djmb

AliceWyman
AliceWyman
  • Moderator
more options

djmb said
Many thanks for your reply. I've refreshed Firefox which seems to have solved the problem, Gmail is back as a Mailto option and I just have one Handler File with the corrupt ones apparently deleted.

Thanks for letting us know that a Firefox Refresh resolved the problem. I'll mark it as the solution.

To RobertJ: Deleting or renaming handlers.json is no longer a solution since it removes the mailto Content Type since at least Firefox version 98. See https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file/discuss/10697 for details.

Modified by AliceWyman