Firefox close tab buttons on mouse hover

I used to have Firefox’s TabMix Plus addon installed. And the feature I missed most – surprisingly – is to have the “close tab” buttons appear on a tab when you hover the mouse over it.

Googling a little bit told me how to bring it back:

.tabbrowser-tab:not([selected]):not([pinned]) .tab-close-button {
    visibility: hidden !important;
    margin-left: -16px !important;
.tabbrowser-tab:not([selected]):not([pinned]):hover .tab-close-button {
    visibility: visible !important; 
    margin-left: 0px    !important; 
    display: -moz-box   !important;

My essential Firefox addons

… can be seen on the Firefox Addons page as collection 🙂 .

The addon ecosystem of Firefox is what keeps me with it. And the way it’s done. One example: Mouse Gestures are available on Chrome, which seems to be a lot faster and smoother today :'( … but in FF, when I go to the settings page, I can still use mouse gestures, cause it’s just another page.

In Chrome I can’t. I like the Firefox behavior – it’s consistent, which is highly a highly underrated property these days.