Tab group names display some code at the start

[CeaselessWatcher]

Describe the bug
The beginning of tab group names display some internal code and make reading the titles a bit confusing

To Reproduce
Steps to reproduce the behavior:

1. Click of extension icon
2. See error

Expected behavior
Only tab group names should be displayed

Screenshots

Desktop (please complete the following information):

• OS and version: Windows 10
• Firefox version: 123.0(64-bit)
• Simple Tab Groups version: 5.2

[CeaselessWatcher]

Update:

The issue seems to have resolved itself, no idea why or how. No updates or version changes have taken place.

[lazymonkey2]

yes it sometimes happened to me too.
usually restarting firefox fixes it.