Steps to reproduce:
- Open a new profile.
- Open about:config
- Verify
services.settings.preview_enabled is empty
- Install and open remote settings devtools
- Change dropdown from Prod to "Prod (preview)"
- Go to about:config
- Verify
services.settings.preview_enabled is true
- Close Firefox
- Re-open Firefox
- Verify
services.settings.preview_enabled is true
- Open remote settings devtools
Expected:
"Prod (preview)" is still selected.
Actual:
"Prod" is selected.