www.aptsovation.com - Firefox is an unsupported browser
URL: https://www.aptsovation.com/
Browser / Version: Firefox 97.0 Operating System: Mac OS X 10.15 Tested Another Browser: Yes Safari
Problem type: Site is not usable Description: Browser unsupported Steps to Reproduce: Fake message saying Firefox is not supported
View the screenshot
Browser Configuration
- None
From webcompat.com with ❤️
We appreciate your report. I was able to reproduce the issue using other devices as well. The page displays an "Unsupported browser" message:

Tested with:
Browser / Version: Firefox Release 97.0.1 (64-bit)/ Firefox Nightly 99.0a1 (2022-02-23) (64-bit)/Chrome Version 98.0.4758.102 (Official Build) (64-bit) Operating System: Windows 10 PRO x64 Operating System: Mac OSX 10.15.6
Notes:
- Reproducible regardless of the status of ETP.
- Reproducible on the latest build of Firefox Nightly.
- Works as expected using Chrome:

Moving this to NeedsDiagnosis for further investigations.
[qa_08/2022]
It does this at the first request, but at the reload it doesn't. And I do not see anything that would prevent that.
This is done server side on first request.
They need to be contacted that's the only way.
This and 3 more sites getting the same UI for the unsupported message (https://github.com/webcompat/web-bugs/issues/101496, https://github.com/webcompat/web-bugs/issues/107969, https://github.com/webcompat/web-bugs/issues/107833). All icons are hosted on the same cdn:
#_li1,#_li3,#_li5{
HEIGHT: 122px;
WIDTH: 120px;
BACKGROUND: url(https://commoncdn.entrata.com/images/browser_warning/background_browser.gif) no-repeat left top;
FLOAT: left;
MARGIN: 0px 46px 10px 0px;
}
#_ico1{
HEIGHT: 100px;
WIDTH: 100px;
BACKGROUND: url(https://commoncdn.entrata.com/images/browser_warning/browser_edge.png) no-repeat left top;
MARGIN: 1px auto;
}
#_ico3{
HEIGHT: 100px;
WIDTH: 100px;
BACKGROUND: url(https://commoncdn.entrata.com/images/browser_warning/browser_safari.png) no-repeat left top;
MARGIN: 1px auto;
}
#_ico5{
HEIGHT: 100px;
WIDTH: 100px;
BACKGROUND: url(https://commoncdn.entrata.com/images/browser_warning/browser_chrome.png) no-repeat left top;
MARGIN: 1px auto;
}
https://www.entrata.com/ is a property management software, so looks like these sites are built using the same platform, something like https://www.entrata.com/marketing/prospect-portal
Likely there are a lot more sites affected. We should reach out to them an in the meantime add an override.
Moved to bugzilla as https://bugzilla.mozilla.org/show_bug.cgi?id=1898995.