Change Screen For Recommended Browser

Hello all,

I would like to encourage my users to use the Chromium Browser instead of Chrome or Firefox.
I have changerd the interface_config.js to only list Chromium as recommended browser: OPTIMAL_BROWSERS: ['chromium'],
since there have been broblems with Firefox I also set:
But when I access the instance with Firefox I now get a recommendation to use Chrome.

Is there a way to change this and point the link to the Chromium download pages?

Thanks a lot for your help!