This usually only pops up on new sites. For example, the first time signing into outlook, it has a notification saying it supports outlook mail clipping. First time on gmail, it let's me know that it supports gmail clipping. This is annoying, and every time that popup appears, I instantly x it out without bothering to read it.
It was really starting to drive me crazy on pdfs. Every time I load a pdf in the browser, I am reminded "Did you know you can clip pdfs directly to Evernote?" But there is a solution!! Once I signed into the web clipper addon and told it to keep me logged in for 30