Could you check whether the preference is defaulted to false on your system?

The about:config method should work for about:newtab, but extensions can override it (and a user.js file can revert it at the next startup).

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste title and pause while the list is filtered

(3) If browser.tabs.drawInTitlebar is false, double-click it to toggle it to true.

Of course, if it's not implemented, then that wouldn't have any effect...

It seems it's not implemented... I've changed browser.tabs.drawInTitlebar to true and got no effect. =/

Hi Doideira, hopefully another Linux user will have some suggestions. You also can submit feature requests using

Help > Submit Feedback

That is not possible on Linux.
It is only implemented on the Windows platform.
The title bar is under control of the OS on Linux and you can't draw in it.
You can see that if you run a Windows version under Wine.

• DOM Inspector: https://addons.mozilla.org/firefox/addon/dom-inspector-6622/
• https://developer.mozilla.org/en/DOM_Inspector/Introduction_to_DOM_Inspector

How come Chrome/Chromium manages to do that even on Linux then?

Which Linux distribution are you using?

Can you attach a screenshot to show this?

• http://en.wikipedia.org/wiki/Screenshot
• https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

Use a compressed image type like PNG or JPG to save the screenshot.

Sure. I'm on Fedora 19 with Cinnamon 2.0.11.

Btw, I've noticed that Chromium, unlike Firefox, doesn't use my default wm theme  : the buttons in the title bar are different. Maybe Chromium doesn't use the titlebar "provided" by the OS, but a custom titlebar, I don't know...

I want to back up what was said here. Chrome and Chromium have done this for as long as I can remember and the Linux distribution is entirely irrelevant in this case (as in most cases). There is an option to use the "system title bar and borders" in Chrome. If applied Chrome will have that blocky, chunky effect of not having the tabs overlapping into the title bar that firefox has. By default chrome does not use the system-provided title bar and borders. They wrote their own. The result is it looks nice. I prefer firefox by miles over Chrome, but have to admit it is chunky and ugly around the edges by comparison.

The problem is not that it is "not possible in Linux." As a dedicated Linux user, hearing that oft-repeated phrase gets really old. There is nothing about Linux that makes things not possible when it comes to coding features. What is going on is the shortcuts available to make the coding quick and easy may not already exist. Fewer people use Linux, fewer people develop for Linux, and there is often less existing code base already written for Linux to make a coding job quick and easy. Also, there is less incentive to write original code to make something work for Linux because we are relatively few; the countless minions using Windows are all complaining about other things and much more loudly so.

There is no doubt the task could be accomplished--which I would love to see--but the developers have to prioritize. I get that. Just wish they'd be honest rather than use the lazy answer of "It can't be done on your system."

For anyone else having this problem I suggest looking at the firefox plugins page, there are 2 plugins I have installed that help with linux integration, one which removes the titlebar when maximized it is called Htitle hope this helps