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

Thunderbird does not start anymore on Mac. The window opens, and then it just tries to start but does not succeed. I have tried restarting the computer, and tried reinstalling Thunderbird. It says "application not responding".

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by zoe2

more options

Hi. After I upgraded Thunderbird, I cannot start it anymore. The window opens, and then it just tries to start but does not succeed. I have tried restarting the computer, reinstalling Thunderbird, nothing works, it is completely stuck. To quit, I have to force quit. It says "application not responding". Needless to say, no menu works, nothing.

It is on a Mac, with Catalina 10.15.7.

It has happened in the past that when I clicked on the icon, it would not bring the window in front. But it was not a permanent problem.

So, I am now using Mail, which I absolutely hate.

I copy below part of the error message I sent to Apple. (There is more, I don't know if it is useful).

Any help will be welcome. Thank you in advance, Zoe C.

Date/Time: 2020-11-01 18:35:30 +0100 End time: 2020-11-01 18:43:24 +0100 OS Version: Mac OS X 10.15.7 (Build 19H2) Architecture: x86_64h Report Version: 29

Data Source: Stackshots Shared Cache: 0xb48000 C3CE4459-8F86-39A9-A2C5-9B775BE70C2A

Command: thunderbird Path: /Applications/Thunderbird.app/Contents/MacOS/thunderbird Identifier: org.mozilla.thunderbird Version: 78.4.0 (78.4.0) Parent: launchd [1] PID: 1229

Event: hang Duration: 473.85s Duration Sampled: 1.00s (process was unresponsive for 473 seconds before sampling) Steps: 10 (100ms sampling interval)

Hardware model: MacBookAir6,2 Active cpus: 4

Time Awake Since Boot: 6000s

Fan speed: 6503 rpm

Modified by Wayne Mery

All Replies (1)

more options

I managed to imperfectly solve the problem, by deleting all files connected to Tbird, and reinstalling. But I lost all my settings and preferences (unfortunately, I was not able to use the copy of my old profile). I am relieved, nevertheless. Zoe C.