There are methods for making a firefox window semi-transparent so that other windows will show up in the background, but is it possible to make a tab semi-transparent so that another tab could show in the background?

  • What OS do you use, and if Linux, what window manager do you use?
    – Emory Bell
    Commented May 21, 2010 at 17:59
  • I would prefer a cross platform solution, but I am open to any solution in Windows or Linux platform. I use Gnome with Compiz in Linux, but also I am open to using KDE.
    – swamplord
    Commented May 21, 2010 at 21:27

3 Answers 3


I can't give you a definitive yes or no answer, but I believe behavior like that would have to be implemented by Firefox itself, since Firefox acts like the "window manager" for its tabs. If it's not supported by the browser, I don't believe there's anything the underlying window manager can do to create that behavior.

You could try looking for a Firefox addon that does this. If it's possible, somebody's probably written it. I did a Google search for firefox transparent tab but I didn't notice anything that does what you want (then again, I only looked at a few of the top results, so feel free to examine the search yourself).


Take a look at http://userstyles.org/ there are a number of styles that make firefox transparent. One option is http://userstyles.org/styles/3874 but you can search for others.

The style can be applied either by adding the Stylish addon or, in a lot of cases, you can enter the code directly into userchrome.css.


There is no a good way to have firefox transparent. transset-df on linux can make something like that, but the complete windows goes transparent, that includes letters too. I don't know if transset-df works with xcompmgr o composite, perhaps no.

  • Welcome to Superuser, Can you provide more information as to how transset-df would fit Swamplords needs?
    – 50-3
    Commented Sep 23, 2013 at 3:20

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