Bug 3845: Bump Firefox user agent to 10.0-ESR

We'll mimic but slightly deviate from Firefox 10.0.4 ESR's uagent. (Why do
they need a damn minor version in there anyways? Just so people can get owned
easier, or what?)

src/defaults/preferences/preferences.js

@@ -209,7 +209,8 @@ pref("extensions.torbutton.appversion_override","5.0 (Windows)");
 pref("extensions.torbutton.platform_override","Win32");
 pref("extensions.torbutton.oscpu_override", "Windows NT 6.1");
 
-pref("extensions.torbutton.useragent_override", "Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0");
+pref("extensions.torbutton.useragent_override",
+     "Mozilla/5.0 (Windows NT 6.1; rv:10.0) Gecko/20100101 Firefox/10.0");
 
 pref("extensions.torbutton.productsub_override","20100101");
 pref("extensions.torbutton.buildID_override","0");