Forum der Gemeinschaft Firefox

My page throws errors in Firefox Nightly such as

Expected color but found ‘undefined’. Error in parsing value for ‘background-color’. Declaration dropped. preview.htm:1:1

and

Expected color but found ‘undefined’. Error in parsing value for ‘color’. Declaration dropped. preview.htm:1:1

The page references ten CSS files besides having dozens of its own CSS declarations. The issue is tha the reference provided to the error (:1:1) does not indicate where I can find the error. That is, I don't know which declaration is at fault. Is there some straighforward way to find the declaration in question?

• • When I click application menu or add-ons icons, the menus open to the left of the screen and this is very annoying and inconvenient. Please advise on how to correct this after the update.

I really do not like the new menu / toolbar in firefox nightly. I guess I hadn't really noticed the changes until now. But it takes up half the page of my browser. Who thought this was a good idea? - to put it smack dab in the middle of the page?! Not me, that is for sure! Ok. So can we see a normal toolbar/ menu bar/ and optional toolbar at the top of the page, please? I like things the way they were. With various options to add buttons and pages or things that we need?? My toolbars were stacked appropriately in roles, with everything I needed on them. And they were always in the same place. Not moving around like toys on the floor. Please, please bring back the old toolbars for this old cranky punk chick. Thanks!! Love Firefox, stop messing with it. 💗💗💗😸😸

I seem only to have issues installing the Nightly build. I have successfully installed Firefox's main, beta, and dev builds.

I received the following error/message when installing it. (see attached images)

This issue occurred on a fresh install of Windows 10 directly from Microsoft's image creation tool. I upgraded to Windows 11 and experienced the same behavior. I used the tool Revo Uninstaller to uninstall previous versions of FF completely and used the tool to clean and purge any leftover registry entries and directories. No errors or entries in Event viewer.

Anybody run into this issue?

He said its down to some update which for some reason I dont have but in the attached image, he is able to add his own wallpaper in nightly but I am not for some reason. Would love some support