How to change the window color and scroll bar color and size in 14.04

Do you mean where back/home/reload etc live? If so then you simply need a new theme which can easily be installed online. Just a quick search will hit the right page for sure.

I also found this online :
https://support.mozilla.org/en-US/questions/1054793

As well as this:
http://stackoverflow.com/questions/3890471/scrollbar-color-change-in-firefox

To customize the window color and scroll bar appearance in Ubuntu 14.04, you need to tweak the system themes and settings. Start by installing the Unity Tweak Tool, which provides an easy interface for changing various desktop settings. You can install it via the terminal with sudo apt-get install unity-tweak-tool here https://techstocky.com/how-to-leave-a-discord-server/. Once installed, open the Unity Tweak Tool and navigate to the "Theme" section. Here, you can select and customize themes that modify window borders, controls, and icons.

 Opening a laptop involves handling delicate internal components, and it's possible that a cable was accidentally disconnected, a port was damaged, or there was a static discharge here https://predovac.com/ that affected the functionality of the USB ports. To troubleshoot, first, ensure that the USB ports are clean and free from debris.