Page opened by Firefox does not fill the screen

[stan]

I don't know anyone that doesn't have their browser in full screen most of the time.

You do now. It's a rare event for me to go full screen... with any app.

 

[MatsuShimizu]

You can also spoof your screen size by enable that setting on Firefox. This is my result before and after. Tested on deviceinfo.me.

This is my real screen size, since I am on a laptop

This is my spoof version of screen size by enabling that setting

You can also do the same with Trace by going to Advance settings > Protections > Screen resolution tracking protection > Enable. And then, Configure.

With Trace, you can also choose your OS type, browser type, RAM size and even more.

 

[KGIII]

You do now. It's a rare event for me to go full screen... with any app.

Wierdo!

I actually seldom use Firefox these days. It was actually uninstalled on this particular computer.