Rated 4 out of 5 stars

Years ago this addon had a feature that was removed - I don't know why:
On browser start the list was automatically saved in a specified format to a specified location.

Now there is a feature that is not practically useful for most users:
On browser exit the list can be uploaded by ftp ...

Please add the save-on-start feature again.

Rated 4 out of 5 stars

Edit:
I don't know why, but this addon still works on Pale Moon, as it's using Jetpack/SDK it should not.

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This addon will stop working on Pale Moon 27.x because it uses the aged Jetpack/SDK

Rated 5 out of 5 stars

Works in newest Thunderbird and also in Pale Moon:
https://mega.co.nz/#!Xc5EiLZQ!JXnJNxbFSShfM1tgX7iBJ94WHuwBizk-IaXCcpEvfac

Edit: I was wrong, it works in Pale Moon but no more in the newest Thunderbird 38.0.1 - there is something wrong with that TB, it also crashes always when Foxy Proxy is enabled, so you have to disable that before you upgrade - some quirks, really.

This review is for a previous version of the add-on (0.10.3).