Gilfether.com

Below are the steps to making Mozilla Thunderbird (or any mail client of your choosing) the default mail client for Firefox in Linux.

1. enter about:config in the address field
2. filter for mailto
3. make sure that “network.protocol-handler.external.mailto” is set to true (double-click to change).
4. Add a new preference:

• right-click on the window
• choose New, String
• prefence name is network.protocol-handler.app.mailto
• value is /path/to/thunderbird (if using another mail client other than thunderbird, enter the path to it here instead)

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