Message Filter Actions Not Shown in Japanese UI
I am reporting an issue with message filters in Thunderbird.
When the UI language is set to Japanese (ja-JP), the “Perform these actions” section in Tools → Message Filters is not displayed, making it impossible to configure filters.
Environment OS: macOS Sequoia 15.6.1 UI language: Japanese (ja-JP)
After switching the UI language to English (US) and restarting Thunderbird, the actions list appears and filters work normally. Switching back to Japanese reproduces the issue.
This seems to be a Japanese localization-related bug.
Thank you.