Description of problem:

In the Scaffolder / Manage templates page, I get a tooltip for "Only supported in some Chromium-based browsers" but it's not explained why

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. <steps>

Actual results:

Expected results:

It explains which API is missing from Firefox for it to work so then I know it's not being gated by user agent or something

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):

1. 1.5 test day
2. Firefox 136.0-2.fc41