Just the bookmarks and no other menu items? If so, locate your profile's
userChrome.css, which should be in:
[your user folder] -> AppData (hidden folder) -> Roaming -> Mozilla -> Firefox -> Profiles -> [your profile, probably the only folder here] -> chrome
Alternatively, just use the start menu to search for
chrome and find the folder there.
If there's no
userChrome.css there, copy the
userChrome-example.css and rename it. Open the file in a text editor (e.g. Notepad) and append the following to it:
Code:
#bookmarksMenuPopup .bookmark-item {
font-size: 7pt !important;
margin: -2px 0 !important;
padding: 0 !important;
} Save the file and restart Firefox.
You can change the font-size row or remove it to leave it as default if you wish, I just find decreasing it looks better when the items are that narrow. If you want to make the items more or less narrow, change the -2px on margin.
This is all assuming you run Firefox 3.x. The code will be a bit different for earlier versions.