Make sure that changes in the options window are immediately reflected (at the moment they require a restart).
Note: there is a separate issue that leads to duplication of action items when a new version of FiltaQuilla is installed - this issue is not meant to fix that issue (it may not be easily possible to fix as the Thunderbird filter service doesn't provide a method for de-registering custom actions.
Make sure that changes in the options window are immediately reflected (at the moment they require a restart).
Note: there is a separate issue that leads to duplication of action items when a new version of FiltaQuilla is installed - this issue is not meant to fix that issue (it may not be easily possible to fix as the Thunderbird filter service doesn't provide a method for de-registering custom actions.