Version 1.10 has been released and contains many of the updates that I have been wanting to do for a long time (such as basic options and better stability). Give it a try and let me know what you think. If you like it and would like to help support the add-on, you could write a review on the official Firefox addon-on page. This will help get the add-on listed in the public database of add-ons, as well as allow for automatic-updates, which do not work as long as the add-on is not listed publicly.

Changes in v1.10:

• Further improved stability by increasing error checking and retries.
• Added support (not translations) for the following languages: Czech, Danish, German, French, Italian, Norwegian, Polish, Portuguese, Romanian, Spanish
• Formatted options pane and added Save & Cancel buttons
• Added signature position option (above/below quoted text)
• Added hide donate button option
• Added "Reinsert" button to allow for resetting of signature in message by reinserting it.