Need D/L of 1.48 installer

It’s different, screenshot here: postimg.cc/RWfpyjRC
next screen: i.postimg.cc/v8LZ11Y6/screenshot-as.png

The link you gave me at Github is for Safari. I already have extensions for all 3 of my browsers.

Can I use the extensions without the program?

I don’t know what you mean “Place the 7z file in the same directory as the installer.” Isn’t the7z file the installer?

I get this when installing from github
i.postimg.cc/4ykCw1XQ/screenshot-12.png