Rated 5 out of 5 stars

It is a very good idea but still has some issues. Files can not be opened in external programs and for me Toggle file thumbnails doesn't work. I am using it on windows 7 x32. I think also it will be more convenient to open the files with clicking on the file name.

Hopefully it will get improved.

This review is for a previous version of the add-on (1.7.9.1-signed). 

Thank you for your feedback! The opening of files in external programs works in the native versionen von TagSpaces (http://tagspaces.org). The thumbnail issue is already fixed in 1.8.0, which is waiting to be reviewed by mozilla. The current implementation opens a file by double click on the filename.