I'm trying to move tabs to the bottom. Some answers refer to userchrome. I don't have userchrome
I'm trying to move tabs to the bottom. Some of the community answers talk about adding code to the userchrome.sss file, however I don't have that file in my Firefox folder. How do you get or create that file and what should be in it?
Screen of your Browser so others can see the problem?
userChrome.css is an optional file that the user needs to create in the correct location in the Profile folder.
See this page for more information: https://www.userchrome.org/
It is not that difficult to create userChrome.css if you have never used it.
The first step is to open the "Help -> Troubleshooting Information" page and find the button to access the profile folder.
You can find this button under the "Application Basics" section as "Profile Folder -> Open Folder". If you click this button then you open the profile folder in the Windows File Explorer. You need to create a folder with the name chrome in this folder (name is all lowercase). In the chrome folder you need to create a text file with the name userChrome.css (name is case sensitive). In this userChrome.css text file you paste the text posted.
In Windows saving the file is usually the only time things get more complicated because Windows can silently add a .txt file extension and you end up with a file named userChrome.css.txt. To avoid this you need to make sure to select "All files" in the dialog to save the file in the text editor using "Save File as".
You need to close and restart Firefox when you create or modify the userChrome.css file.