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Clicking on a link once generates an infinite stream of tabs that I can't stop without closing Firefox

If I click on a hyperlink within a message on Thunderbird, I open an infinite stream of tabs on Firefox. What's happening? Yesterday I was able to close to close tabs and stop the progression; today I had to close Firefox entirely.

If I click on a hyperlink within a message on Thunderbird, I open an infinite stream of tabs on Firefox. What's happening? Yesterday I was able to close to close tabs and stop the progression; today I had to close Firefox entirely.

Chosen solution

This can happen when you set Firefox as the program to open a type of content it can't actually handle. Please see this support article on how to clear that setting: Firefox repeatedly opens empty tabs or windows after you click on a link.

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Chosen Solution

This can happen when you set Firefox as the program to open a type of content it can't actually handle. Please see this support article on how to clear that setting: Firefox repeatedly opens empty tabs or windows after you click on a link.