Firefox 移除上方Tab的X

JDP

1.輸入 "about:config"
2.搜尋 "browser.tabs.closeButtons"，內定值為1，改為2即可

各值代表意義:
0 - Display close button on active tab
1 - Display close button on all tabs
2 - Display no close buttons
3 - Display single close button at end of tab bar (Firefox 1.x)

Reference:
Firefox Hack: Remove Close Button [X] from Tabs
http://desultcreations.blogspot. ... se-button-from.html