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A simple offline dictionary software for Firefox OS and Firefox for Android.

Currently, only StarDict dictionaries are supported. Users can organize many dictionaries by renaming, coloring, reordering them and by classifying them in groups. The last 20 terms that have been looked up are stored and can be accessed directly from the start screen.

The user interface can be customized. Users can change the font size of dictionary entries or force all dictionary colors to be greyscale. Furthermore, long entries can be truncated by default.


Screenshots are hosted on and displayed on the marketplace as well as on the project's homepage.

screenshot1 # screenshot2


The languages, currently supported by Firedict, with their respective translators are as follows:

  • English, German - tuxor1337
  • Russian - Svetlana A. Tkachenko
  • Czech - Jan Knížek
  • French - Luc Absil
  • Italian, Spanish - anonymous contributors

If you are interested in contributing to the localization of FireDict, have a look at the localizable strings in src/locales/ and feel free to send a pull request.

Build and run

The build process requires the Node package manager npm. Apart from that you just have to run make in order to get a fully working version of FireDict in build/livebuild (simply open in WebIDE as packaged app). The file build/ is the one that is uploaded to the Firefox Marketplace.

Furthermore, make creates a version of this app that doesn't require privileges and permissions. You can run it by opening build/testbuild/index.html in any browser (mobile or non-mobile, offline or online) and test all the ui stuff like l10n.js, AngularJS and stylesheets. (The test worker uses dummy dictionaries and dummy lookups etc.)

Licensing and third-party code

FireDict is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

FireDict is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with FireDict (see COPYING.txt). If not, see

However, FireDict is heavily based on third-party code that is listed in LICENSE.3rd-party along with its corresponding authors and licenses.

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