We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Quantum Beta: Does not respond when trying to open link in Thunderbird

  • 1 reply
  • 1 has this problem
  • 6 views
  • Last reply by cor-el

Ygrec23
Ygrec23
more options

Just downloaded and installed Firefox Quantum Beta. Unlike all prior Firefox editions, when I click on a link in Thunderbird, the link does not open in Quantum Beta. Is there a necessary step involving somehow registering Quantum Beta with Thunderbird? Is there some other action I need to take in order to have Thunderbird links open in Quantum Beta? I'm working on a PC with W10 installed.

Just downloaded and installed Firefox Quantum Beta. Unlike all prior Firefox editions, when I click on a link in Thunderbird, the link does not open in Quantum Beta. Is there a necessary step involving somehow registering Quantum Beta with Thunderbird? Is there some other action I need to take in order to have Thunderbird links open in Quantum Beta? I'm working on a PC with W10 installed.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Is the Firefox Quantum Beta version set as the default browser?

You may have to check the related key in HKEY_CLASSES_ROOT in the Windows registry editor to see if the point to the correct Firefox version.