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.

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

Lightening will not download to my Windows 7 Home Premium PC?

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by Wayne Mery

more options

I've tried to download several times. After I restart Thunderbird it does not appear under tools/options. I'm trying to sync up with my google calendar.

I'm also having an issue with a direct download of the file. Every time I download it's creating an xpi file extension and pops into an email???

I've tried to download several times. After I restart Thunderbird it does not appear under tools/options. I'm trying to sync up with my google calendar. I'm also having an issue with a direct download of the file. Every time I download it's creating an xpi file extension and pops into an email???

All Replies (1)

more options

What you describe matches what happens when the update process screwed up and the Lightning addon is causing problems.

- start Thunderbird in safe mode

 https://support.mozilla.org/en-US/kb/safe-mode

- go to tools | addons - remove the lightning addon - restart thunderbird - if you need the lightning addon, add it back at tools | addons

Does that help?