first of all Thank you for the Plugin "Favicon Downloader", it is a very useful and powerful plugin.
I use it very often and it helps me a lot!
KeePass has an "Check for updates" feature.
Here also updates of my installed Plugins are checked.
Unfortunately "Favicon Downloader" can not be checked for updates.
I contacted Dominik Reichl (the programmer of KeePass).
He answered that a Plugin needs to provide Version-Information-Files, then KeePass can check this plugin for changes (for new versions).
Please provide Version-Information-Files at "Favicon Downloader", so KeePass informs me if there is a new version available.
This was already done a while ago. It's a fairly new feature of KeePass so older versions of the favicon downloader won't be able to notify you of an update but if you're running 1.7.1 you should now see an update to 1.7.2 is available.
thank you for this information.
You are right, I was using an old version of the plugin.