隐藏Firefox的右键菜单

Firefox的扩展装多了,右键菜单项也在添加,现在我们就来隐藏一些不常用或不用的菜单项.
首先，定位到个人配置文件夹，找到名为 “chrome” 的子文件夹。你需要编辑该文件夹下的 userChrome.css 文件，如果它不存在就新建之。把下面这行加入 userChrome.css 文件，将可以隐藏任何右键菜单选项。
#id1 { display:none !important; }
把 #id1替换为下面的任何一项：(指明每个选项所对应的右键菜单选项,其实就是定义菜单项的CSS样式)

#context-openlink Open Link in New Window
#context-openlinkintab Open Link in New Tab
#context-sep-open line separator
#context-bookmarklink Bookmark This Link…
#context-savelink Save Link As…
#context-sendlink Send Link…
#context-copyemail Copy Email Address
#context-copylink Copy Link Location
#context-sep-copylink line separator
#context-viewimage View Image
#context-copyimage-contents Copy Image
#context-copyimage Copy Image Location
#context-sep-copyimage line separator
#context-saveimage Save Image As…
#context-sendimage Send Image…
#context-setWallpaper Set As Wallpaper…
#context-blockimage Block Images from…
#context-back Back
#context-forward Forward
#context-reload Reload
#context-stop Stop
#context-sep-stop line separator
#context-bookmarkpage Bookmark This Page…
#context-savepage Save Page As…
#context-sendpage Send Page…
#context-sep-viewbgimage line separator
#context-viewbgimage View Background Image
#context-undo Undo
#context-sep-undo line separator
#context-cut Cut
#context-copy Copy
#context-paste Paste
#context-delete Delete
#context-sep-paste line separator
#context-selectall Select All
#context-sep-selectall line separator
#context-keywordfield Add a Keyword for this Search…
#context-searchselect Search Web for …
#frame-sep line separator
#frame This Frame
#context-sep-properties line separator
#context-viewpartialsource-selection View Selection Source
#context-viewpartialsource-mathml View MathML Source
#context-viewsource View Page Source
#context-viewinfo View Page Info
#context-metadata Properties
#context-sep-bidi line separator
#context-bidi-text-direction-toggle Switch Text Direction
#context-bidi-page-direction-toggle Switch Page Direction