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Thunderbird recipient auto-complete is very slow

  • 3 replies
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  • 53 views
  • Last reply by Ed
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When creating a new email and entering a recipient address, Thunderbird automatically suggests addresses after typing a few characters. However, in my case the auto-complete suggestions take about 10 seconds to appear after I start typing.

I am using Thunderbird version 149.0.1. My settings under Settings → Composition → Addressing are as follows:

☑ Local Address Books ☐ LDAP Server ☑ Automatically add outgoing recipients to: Collected Addresses Initial Directory for Address Book: Last Used Directory

I would like to understand what kind of search Thunderbird performs when auto-completing email addresses.

Also, if anyone has experienced the same issue, how did you resolve it?

Any insights or advice would be greatly appreciated.

When creating a new email and entering a recipient address, Thunderbird automatically suggests addresses after typing a few characters. However, in my case the auto-complete suggestions take about 10 seconds to appear after I start typing. I am using Thunderbird version 149.0.1. My settings under Settings → Composition → Addressing are as follows: ☑ Local Address Books ☐ LDAP Server ☑ Automatically add outgoing recipients to: Collected Addresses Initial Directory for Address Book: Last Used Directory I would like to understand what kind of search Thunderbird performs when auto-completing email addresses. Also, if anyone has experienced the same issue, how did you resolve it? Any insights or advice would be greatly appreciated.

All Replies (3)

See if this helps:

- go to TB menu > Settings > General

- scroll all the way down and click the 'Config editor' button on the right
- click 'Accept the risk and continue' if that appears
- search for accessibility.force_disabled > change the value to 1 > click the check mark
- restart TB

Also try clearing cache:

- press Ctrl-Shift-Delete (Mac: Cmd-Shift-Delete)

- set 'Time range...' to 'Everything'

- untick all items except 'Cache'

- clear, then restart TB

Modified by Ed

Dear Edo,

Apologies for the delayed response, and thank you for your message.

Unfortunately, the issue did not improve after following the instructions provided. Upon checking, I found that the profile size is approximately 160GB. Could this be the cause of the problem?

Best regards,

murakami8 said

Dear Edo, Apologies for the delayed response, and thank you for your message. Unfortunately, the issue did not improve after following the instructions provided. Upon checking, I found that the profile size is approximately 160GB. Could this be the cause of the problem? Best regards,

Probably not. Does the slowness also happen in [Troubleshoot mode](https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird/)?

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