mxr.mozilla search the Mozilla Cross-Reference site, free-text (a link to identifier search appears above the results). This is for the Mozilla Central, main mercurial (hg) repository for development of Gecko, XULRunner, and Firefox
Quit Fennec - Firefox Addon - With this add-on, Fennec will quit when you press the "close" button on the last open tab.
The Android OS automatically pauses applications when they are in the background, and closes them when free memory is needed. So most users shouldn't need to "quit" applications in Android
JSONovich - Firefox Addon is a Firefox extension that pretty-prints JSON content of various types directly in a browser tab. It uses the browser's native JSON parser and a custom-built formatter to produce its output.
Normally, Firefox would prompt to download JSON sent with the correct application/json mime-type
TryAgain - Firefox Addon keeps trying to load a webpage when the server cannot be reached. Sometimes you know that you have entered the address correctly, but the page won't load the first time around. Maybe your wireless connection dropped or the server hosting the website is temporarily down; whatever the reason, TryAgain will try and try again