Download Link: https://addons.mozilla.org/firefox/addon/ui-text-overrider/
Provides ability to override UI elements' label, tooltip text, etc.
If you define some preferences like following, this addon automatically apply new labels, tooltip texts, and so on.
user_pref("extensions.uitextoverrider@clear-code.com.sample", "CSS selector for the element");
user_pref("extensions.uitextoverrider@clear-code.com.sample.label", "new label");
user_pref("extensions.uitextoverrider@clear-code.com.sample.tooltiptext", "new tooltiptext");
user_pref("extensions.uitextoverrider@clear-code.com.sample.accesskey", "accesskey");
user_pref("extensions.uitextoverrider@clear-code.com.another", "CSS selector for the element 2");
user_pref("extensions.uitextoverrider@clear-code.com.another.label", "new label2");
user_pref("extensions.uitextoverrider@clear-code.com.another.tooltiptext", "new tooltiptext2");
user_pref("extensions.uitextoverrider@clear-code.com.another.accesskey", "accesskey2");
// If the item is automatically inserted by another addon,
// then you should set this "delayed" flag to override labels certainly.
user_pref("extensions.uitextoverrider@clear-code.com.another.delayed", true);
...
For example, following preferences will change the label of "Firefox" button to "Iceweasel".
user_pref("extensions.uitextoverrider@clear-code.com.appbutton", "#appmenu-button");
user_pref("extensions.uitextoverrider@clear-code.com.appbutton.label", "Iceweasel");
The value of the base key is always a CSS selector string to find the target element. You can specify any attribute name and value as child keys.
Note: original attribute and values won't be restored even if the addon is disabled or uninstalled, until you restart Firefox.