<p>Another angle:
how do I browse all the XUL for a given chrome path, e.g.</p>

<p><a href="http://kb.mozillazine.org/Dev_:_Firefox_Chrome_URLs" rel="nofollow noreferrer">http://kb.mozillazine.org/Dev_:_Firefox_Chrome_URLs</a> has a listing but seems to be out of date.</p>

Mozilla
```
chrome://
```
URLs
refer to actual files located in a .jar file in some fairly well-defined places.
The main browser (chrome://browser/content/...) itself:
```
```
{where you installed Firefox}/chrome/browser.jar
```
```
Firefox add-ons:
```
```
{your profile directory}/extensions/{extension id}/chrome/content/...
```
```
where
```
{your profile directory}
```
, on Windows XP at least, is
```
```
c:\Documents and Settings\{your username}\Application Data\Mozilla\Firefox\Profiles\{your profile name, usually ends in .default}
```
```