In order to test the extension, edit the file `tiddlyfox@tiddlywiki.org` to contain the path to the TiddlyFox extension folder, and then drop the file in your `[firefox profile folder]\extensions\` folder. ---- This package accompanies the article at MozillaZine Knowledge Base, which can be found at You can use its contents as a starting point for developing extensions. Steps to register these files in the EM are described in the "Registering your extension in the Extension Manager" section of the article. In short: 1. Unzip this package to any location, e.g. c:\dev 2. Put the path to the "helloworld" folder (e.g. c:\dev\helloworld) in the "helloworld@mozilla.doslash.org" file and move that file to [profile folder]\extensions\ 3. Restart Firefox. You should see a new red "Hello world" item in the Tools menu and the extension should show up in the Extension Manager window (Tools > Extensions). ********* YOU MUST RUN FIREFOX 3.6 OR FIREFOX 4 TO USE THIS PACKAGE ************ helloworld.xpi contains working prebuilt version of the extension, just in case. You must change the following items before making your extension available to general public: 1) the extension's ID in install.rdf (helloworld@mozilla.doslash.org). (For details see ) 2) the extension's short name (currently "helloworld"). The new name must be in lower case. ********* OK, the example is working. What's next? Follow the tips at to save yourself time. Check the documentation available at . If you have any problems that you can't solve yourself, feel free to ask questions: