Installation instructions:

1. Uninstall any pre 1.5.0 version
2. Click the link to the most recent version
3. If being prompted that Firefox prevented this site to install software, click "Allow"
4. Click the "Install now" button
5. Updates will become automatically availbale through your browser's add-on update feature

Note: It is not recommended to install older versions, as they will either not work or contain incorrect links.

Installation instructions for pre 1.5.0 versions:

1. Uninstall the old version
2. Manually download the new version (using right-click -> Save Link As)
3. Manually install the new version by drag-dropping the .xpi file into your firefox browser/Add Ons window