Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

TB is VERY slow when reading and moving emails

  • 2 cavab
  • 1 has this problem
  • 7 views
  • Last reply by clinto1

more options

I'm using TB 60.9.1 on a Mac running Catalina 10.15.1

TB is EXTREMELY slow when I move an email message from inbox or outbox to a local folder, and extremely slow when I am reading emails and jump from one email in the folder to another.

I have a lot of emails stored in local folders. I use POP mail and store all my email on my computer. I need to keep records of all email for work purposes. I don't know the total amount of email that TB is storing for me, but it is a record of all my work-related email for about the past 10 years.

Is it possible that the large volume of email that TB is holding is the cause of TB slowing down?

Every Sunday I review all emails that I sent and received in the preceding week, and file them away in local folders. (Basically, I clean up my inbox and outbox.) Each time I move an email from inbox/outbox to a local folder, I have to wait 15-30 seconds (spinning beach ball) before TB displays the next message in the inbox/outbox.

Any ideas for why TB has become so slow? And any suggestions for how to fix this?

I'm using TB 60.9.1 on a Mac running Catalina 10.15.1 TB is EXTREMELY slow when I move an email message from inbox or outbox to a local folder, and extremely slow when I am reading emails and jump from one email in the folder to another. I have a lot of emails stored in local folders. I use POP mail and store all my email on my computer. I need to keep records of all email for work purposes. I don't know the total amount of email that TB is storing for me, but it is a record of all my work-related email for about the past 10 years. Is it possible that the large volume of email that TB is holding is the cause of TB slowing down? Every Sunday I review all emails that I sent and received in the preceding week, and file them away in local folders. (Basically, I clean up my inbox and outbox.) Each time I move an email from inbox/outbox to a local folder, I have to wait 15-30 seconds (spinning beach ball) before TB displays the next message in the inbox/outbox. Any ideas for why TB has become so slow? And any suggestions for how to fix this?

All Replies (2)

more options

I don't recall such a problem related to Catalina. (and I just updated to it)

If there is a problem, it won't be fixed in version 60. Try the newer version 68 first.

more options

I just updated to version 68 of TB for Mac.

This coming weekend, when I do my weekly task of sifting and sorting emails, I'll see if the problem is gone and will report back here.