Hi GAPa,

Thanks for visiting Mozilla Support!

This addon is indeed compatible with Fx25 as I have tested it. Try this. Press CTRL + SHIFT +A and click on Extensions, then go into Options on Custom Tab Width then input 1 as MIN. Does that help?

If not, feel free to reply and we will try other things to get this resolved.

Hm, that's odd. I have that setting to 1 already, but it doesn't work. Perhaps some other of my add-ons is causing a compatibility problem. I suppose I'll have to investigate that.

That is odd.

Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.

(If you're not using it, switch to the Default theme.)

• On Windows you can open Firefox 4.0+ in Safe Mode by holding the Shift key when you open the Firefox desktop or Start menu shortcut.
• On Mac you can open Firefox 4.0+ in Safe Mode by holding the option key while starting Firefox.
• On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
• Or open the Help menu and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

Once you get the pop-up, just select "'Start in Safe Mode"

Try to switch each of your add-ons off and on then restart to see if you can reproduce the problem. If you can with one of the add-ons disabled, there's your conflicting add-on.'

Now o exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

Let me know if this helps.

I found the problem. The problem was in the Stylish style http://userstyles.org/styles/53190/firefox-6-disable-resizing-tab-close-behavior. I've had that style for a long time, but somehow, it must have been reset, because it contained 'min-width: 100px'. When I changed that back to 1px, everything was normal again.

Thank you for your help.

GAPa,

I'm glad to see you have resolved your issue and thank you for marking a solution.

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