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Setup Cygwin
Download and run the cygwin setup.exe (direct download link).

The setup process is straightforward. Choose the directories you’d like to use and install the default current packages. On the page after the package choices make sure to keep the option to download the required packages checked.  That’s all that needs to be done to setup cygwin.

Prepare Tree Style Tab
Download the latest Tree Style Tab files here by clicking on the button labeled “ZIP”.
Extract the zip file into a folder named “treestyletab” in a location of your choosing. For this example I’ll put the folder in “C:\treestyletab\”
Run the cygwin terminal and enter the following commands one at a time:

cd "C:\treestyletab\"
bash make.sh

Now there should be a file entitled “treestyletab.xpi” in the root directory of the folder you created. For example the location of my newly created file is at “C:\treestyletab\treestyletab.xpi”. Drag this file into Firefox, install the add-on, and restart Firefox.

About a month ago a Tree Style Tab commit to raise the tab height for the “Metal” skin also affected the “Sidebar” skin.

If you’d like to revert these changes and decrease the tab height then do the following:
1) Download the latest treestyletab.xpi
2) Open the xpi file with 7-Zip (or a similar program)
3) Navigate to chrome -> treestyletab.jar -> skin -> classic -> treestyletab
4) Double click on the file “ui.css”
5) Remove line #233 which should only contain min-height: 22px; and save the file
6) At this point 7-Zip displays a pop-up:

File ‘ui.css’ was modified.
Do you want to update it in the archive?

Click “OK” and exit 7-Zip
7) Now there should be another pop-up:

File ‘treestyletab.jar’ was modified.
Do you want to update it in the archive?

Click “OK”
8) Drag the updated treestyletab.xpi into Firefox, update the add-on, and restart Firefox.

Enjoy!

Goal:  Color Firefox tabs individually on the fly (without having to use userChrome.css).

The reason this feature is useful to me is because I often work with many tabs at a time (15+) and being able to color certain tabs makes it easier for me to tell them apart.  For instance I would use a certain color for a specific category of tabs I was working.  This just allows me to switch between the tabs faster and I’m able to be more productive.

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