Tags and `mailnews.headers.showUserAgent` which I have set to `true` for seeing what a user has used to post to a support group. No longer seeing the UA in 96.0b1, or 97.0a1.
Bug 1556261 Comment 100 Edit History
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~~Tags and `mailnews.headers.showUserAgent` which I have set to `true` for seeing what a user has used to post to a support group.~~ ~~No longer seeing the UA in 96.0b1, or 97.0a1.~~ Now seeing tags and the UA after resetting toolbars and controls when using Troubleshoot Mode.