How to Enable Firefox Metrics Extension

Before reading this guide, please make sure that you understand how to Patch and build Firefox. The steps will basically assume that you have knowledge of building Firefox and will skip basic information. If you don't understand how to Patch or build Firefox please refer to the "Resources" below.

Basic steps to install & enable the Firefox Metrics Extension

1. Checkout a nightly build from the Mozilla CVS.

2. Patch the metrics extension with this patch
--Metrics Patch--

3. Add the following to the .mozconfig

ac_add_options --enable-extensions=metrics

4. Build Firefox.

5. Go into the "dist/bin/extensions/metrics@mozilla.org/defaults/preferences" folder and edit the metrics.js. It should look like this.

pref("metrics.upload.enable", true);
pref("metrics.upload.uri", "http://matrix.senecac.on.ca/~sljung/metrics/metrics.cgi");
pref("metrics.event-count", 0);

6. Start the Firefox build.

Resources
MDC Build Guide
Guide to Build Firefox in Windows (Blog)
Seneca Lab in Patching
Guide to Patching & Building (Blog)