Yet another reason to not use Chrome

[Kilroy]

The browser situation for me has become quite frustrating.
I have left my home system running Waterfox 56.2.2 after I found that more recent versions broke access to a large number of sites (boingboing.net, fanfiction,net, tthfanfic.org, etc.)
I would change back to Firefox, but I cannot find an equivalent Add-On to SaveAsFilename. Does one exist? I still need to have Java at work so I am stuck there.