Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
2) User defined tags are introduces.
2) Positioning of the edit mask is improved.
3) Meta tag description can be placed to the description of the saved link.
2) The max version is increased to 17.x. The code of the add-on is so simple that there should be no compatibility problems with the future versions.
3) The code is refactored due to the instructions of the reviewer.