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Thunderbird does not open attachments in macOS Big Sur 11.2.3

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

Valentin Martinez Pillet
Valentin Martinez Pillet
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Hi

After installing macOS Big Sur 11.2.3, Thunderbird stopped opening attached files (Word, Excel, pdfs, jpg, all of them). I need to save them and open from the folder.

Any idea of what can be going on, or how to fix it?

Thanks.

Hi After installing macOS Big Sur 11.2.3, Thunderbird stopped opening attached files (Word, Excel, pdfs, jpg, all of them). I need to save them and open from the folder. Any idea of what can be going on, or how to fix it? Thanks.

All Replies (1)

sfhowes
sfhowes
  • Top 10 Contributor
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In the Preferences/General/Files & Attachments section, delete the action for one of the content types, e.g. jpg, restart TB, then open an attachment and follow the prompt to set the opening application. If selecting an app from the presented list doesn't work, click Other.. and select the app directly. The settings for all file types is in the handlers.json file in the profile folder (Help/Troubleshooting, Profile Folder), so if you delete or rename that file, while TB is closed, a new file is created on restart, and new entries are made when you define the opening app, as above.