What is the question? Your screenshot is unreadable.
Welcome to the WLED web installer!
Sorry, your browser is not yet supported!
Please try on Desktop Chrome or Edge.
Then, use a different browser.
Google Chrome
Are you running on a PC, Mac, Tablet, phone?
What version of OS, what version of Chrome?
I normally use the Edge browser. I just installed WLED on an ESP8266-01 using the Opera Browser. And again using Google Chrome, Version 116.0.5845.141 (Official Build) (64-bit).
Windows 10, 64 bit.
I got the same error as the OP using FireFox.