Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Newly installed Thunderbird 78.1.1 on Catalina very slow in all actions all the time

  • 2 antwurd
  • 2 hawwe dit probleem
  • 4 werjeftes
  • Lêste antwurd fan f6wr4rvstc9s

f6wr4rvstc9s
f6wr4rvstc9s
more options

I've Thunderbird 78.1.1 on a Macbook Pro running Catalina 10.15.6. While my Mac is v fast, Thunderbird is extremely slow in all actions - reading emails, replying, even clicking on a folder brings up the blue wheel. I've only added 3 of my email accounts as of now, 2 of which are very new with v few emails. I've NO add-ons currently. I'm wondering if I should just uninstall it. What I've tried till now: 1) Removed indexing 2) Deleted .msf files & reopened & compacted folders again (automatic compacting is on) 3) Added Thunderbird to the list of anti-virus exclusions 4) Set gfx.direct2d.disabled to true and layers.acceleration.disabled to true. 5) Proxies - use system proxy settings 6) Tried running it in safe mode 7) Deleted caches from the OS & restarted

Any advice?

I've Thunderbird 78.1.1 on a Macbook Pro running Catalina 10.15.6. While my Mac is v fast, Thunderbird is extremely slow in all actions - reading emails, replying, even clicking on a folder brings up the blue wheel. I've only added 3 of my email accounts as of now, 2 of which are very new with v few emails. I've NO add-ons currently. I'm wondering if I should just uninstall it. What I've tried till now: 1) Removed indexing 2) Deleted .msf files & reopened & compacted folders again (automatic compacting is on) 3) Added Thunderbird to the list of anti-virus exclusions 4) Set gfx.direct2d.disabled to true and layers.acceleration.disabled to true. 5) Proxies - use system proxy settings 6) Tried running it in safe mode 7) Deleted caches from the OS & restarted Any advice?

Alle antwurden (2)

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor
more options

If you are still seeing slowness when using version 78.4.0, please post about your current situation.

f6wr4rvstc9s
f6wr4rvstc9s Fraacheigener
more options

Hi, I'm still seeing the same issues using version 78.4.0. Resending the message:

I've Thunderbird 78.4.0 on a Macbook Pro running Catalina 10.15.7. While my Mac and the internet connection is v fast, Thunderbird is extremely slow in all actions - reading emails (even if there's only 1 new email), replying, even clicking on a folder brings up the blue wheel. I've only added 3 of my email accounts as of now, 2 of which are very new with v few emails. I've NO add-ons currently. I'm wondering if I should just uninstall it. What I've tried till now: 1) Removed indexing 2) Deleted .msf files & reopened & compacted folders again (automatic compacting is on) 3) Added Thunderbird to the list of anti-virus exclusions 4) Set gfx.direct2d.disabled to true and layers.acceleration.disabled to true. 5) Proxies - use system proxy settings 6) Tried running it in safe mode 7) Deleted caches from the OS & restarted

Any advice?