Ken – This is a simple one, but… I’d love it if the mouse-over tab color were different than the active tab color. Right now they’re the same. And if the mouse is over the [X], then it’s lit up the same way. I keep closing what I think is the active tab I’m currently looking at when it’s merely the one my mouse happens to be over. Frustrating.

Zeke – Need an easy way to resize the font for the “bookmarks” sidebar.

Both can be done by adding the following CSS codes to userChrome.css or Stylish extension

For Ken:
/* change the color code to suit your needs */
.tabbrowser-tab:hover > hbox {
background-color: red !important;
color: white !important;
}

/* for active tab /*
.tabbrowser-tab:hover > hbox[selected="true"] {
background-color: blue !important;
color: white !important;
}

For Zeke:
#bookmarksPanel treechildren {
font-size: large !important;
}