Solution: Go to this URL: about:support Click "Show Folder" Once there, you should see a "chrome" directory with a file called "userChrome.css" in it. Edit that with Notepad and paste the code into it (if the file isn't already there, just make one by that name). Restart Firefox. Code: @-moz-document url(chrome://browser/content/browser.xul) { @media (-moz-os-version: windows-win10) { #main-window:not([customizing]){ -moz-appearance: -moz-win-glass !important; background-color: transparent !important; } } }
Why would anyone prefer Firefox instead of Pale Moon, these days? Same as when originally Phoenix/Firebird were the precursors to Firefox, by creating a lean and improved version of the clunky Mozilla browser. Now Pale Moon is doing the same thing with the now clunky Firefox. It's time to move. Unless you aren't on Windows, but that's not the case here...
Firefox stopped having a chrome folder by default in the profile since around Firefox version 4, so you have to create the chrome folder and whatever file you need manually. I'll try this later since I've spent way too much time on this problem tonight. Thanks everybody.
No, it's not. I don't have a chrome folder or a userchrome.css anywhere in my appdata folder. That's why some people have to manually make the folder and the file. Stop being so positive about everything!
For clean install: 1. Go to C:\Users\Your username\AppData\Roaming\Mozilla\Firefox\Profiles\m2jiubkz.default (m2jiubkz.default is not always name of profile this is random name) 2. Create new folder called chrome 3. Go to folder chrome and create userChrome.css In userChrome.css enter this: Code: @-moz-document url(chrome://browser/content/browser.xul) { @media (-moz-os-version: windows-win10) { #main-window:not([customizing]){ -moz-appearance: -moz-win-glass !important; background-color: transparent !important; } } } Save and restart Mozila Firefox 40.