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Firefox cannot open "mailto:" or other URIs in firefox. Other browsers work fine.

  • 6 回覆
  • 1 有這個問題
  • 51 次檢視
  • 最近回覆由 cor-el

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When I try to open a URI in firefox, nothing happens. For URIs in the application list (General-Applications) nothing happens. For new URIs, there is no popup asking me if I want to open it. I am able to open these links in any other browser.

所有回覆 (6)

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Hi derektietze91,

I dug up another thread which may relate to your issue with mailto : I cannot open mailto links in external websites. {link}

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Thanks for digging that up. I was hopeful, but mimeTypes.rdf does not appear in my profile folder. This is a fresh install of Firefox, if that matters.

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Have you tried starting Firefox in Safe Mode?

In case you already installed add-ons, this will disable them to eliminate the possibility of interfering with your web browser.

To start in Safe Mode:

  1. Click the '3-bar' menu icon in your web browser
  2. Click Help(?)
  3. Click Restart with Add-ons Disabled...
  4. Click Restart and when prompted choose Restart in Safe Mode ( Refresh will create a New Profile while saving your old profile to your desktop while removing features so read carefully)

You could also try creating a New Profile

The following steps were taken from the above link under Creating a profile :

  1. Type about:profiles into the address bar and press the Enter key.
  2. Click Create Profile... to start the Create Profile Wizard.
  3. Click Next and enter the name of the profile.
  4. Disregard the Choose Folder prompt unless you wish to choose where to store the profile on your computer.
  5. To create the new profile, click Finish.

You could also check out extensions available for in Firefox Add-ons website ( i used mailto as a search )

See also MailTo : One click to open your mail client with the current tab's URL in a new message

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Thanks for the advice. I tried starting in safe mode and the behavior of firefox persisted. I tried creating a new profile as well and it still did so. I also tried reinstalling firefox to no avail.

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mimeTypes.rdf has been replaced by handlers.json, so you can check this file and possibly rename to handlersOLD.json to see if that has effect.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

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