I have those file associations:
http://i.imgur.com/LgUcGlu.png

Why does the html file show the VLC icon? When I click the html file VLC starts instead of Firefox, why is it?

Hello. it's perhaps a problem with a corrupted C:\LiberKey\LiberKeyTools\KeyFileAssoc\KeyFileAssoc.xml file . Close your Liberkey. After have renamed it like KeyFileAssoc_HS.xml try copy and rename inone of the backup files like KeyFileAssoc_2016-10-17_20-11-36.xml you find in the bak directory to replace it. Restarts your Liberkey and see if the problem persists.

JP4U

Many thanks, JP4U.

This problem / behavior is already existing for a long time, may be a year or 2 or so, so most likely the back up files will be corrupted also, if the original files is damaged.

May be there is another way?

When I "Restore the local...." the html file opens correctly, when I use Liberkeys associations the html file is opened with VLC.

Thank you very much, again.