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Content that will appear in about:healthreport

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Firefox Health Report - Jelly

This is a very simple static website generator for the content ("jelly") that will be injected into the about:healthreport page.

Based on nocturnal, it takes a single jinja2 template, throws in some translations from .lang files,, and generates a bunch of static, localized output files.



git clone git://

The localization files will live in SVN, but do not exist yet. Check them out into the subdirectory "locale" to pull in translations.

cd fhr-jelly
svn checkout

Choosing a build version

Specify a version to build in Available versions are 'passive' and 'urgent'. 'Passive' is the default.

Generating output files

Specify an output directory (it shouldn't be the same directory as the repo) and allow a few seconds for the script to scrape Mozilla's FTP server.

./ --output-dir html

To delete the output dir before generating the output (careful!), use the --force option.

./ --output-dir html -f

The build version can be overwritten with the --version command line argument.

./ --version urgent --output-dir html -f

Extracting .lang files

If you change localizable strings in the templates, you'll want to extract those strings and add them to the .lang files.


should do the trick.

Run individual functions against your own custom JSON

To enable further debugging of individual functions of FHR you can use the roll your own JSON page. In order to use this, follow these steps:

1) Clone this repo:

git clone git://

2) You need to run this on a simple web server. The easiest is to use the built in server that comes with Python. Add the following to your .bash_profile

# usage
# $ server
alias server='python -m SimpleHTTPServer && open http://localhost:8000'

3) Change directory into the FHR clone and run:


4) Open up your browser and point it to http://localhost:8000/tests/custom/no_index.html. Paste your JSON and fire away!


This software is licensed under the Mozilla Tri-License:

Version: MPL 1.1/GPL 2.0/LGPL 2.1

The contents of this file are subject to the Mozilla Public License Version
1.1 (the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
for the specific language governing rights and limitations under the

The Original Code is Nocturnal.

The Initial Developer of the Original Code is Mozilla.
Portions created by the Initial Developer are Copyright (C) 2012
the Initial Developer. All Rights Reserved.

  Matthew Riley MacPherson <>
  James Long <>
  Fred Wenzel <>
  Laura Thomson <>

Alternatively, the contents of this file may be used under the terms of
either the GNU General Public License Version 2 or later (the "GPL"), or
the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
in which case the provisions of the GPL or the LGPL are applicable instead
of those above. If you wish to allow use of your version of this file only
under the terms of either the GPL or the LGPL, and not to allow others to
use your version of this file under the terms of the MPL, indicate your
decision by deleting the provisions above and replace them with the notice
and other provisions required by the GPL or the LGPL. If you do not delete
the provisions above, a recipient may use your version of this file under
the terms of any one of the MPL, the GPL or the LGPL.

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