They mentioned 1000 tabs which may go some way towards explaining it. If that's not how you're supposed to use Chrome (I'd understand if it wasn't) then I'd ima

They mentioned 1000 tabs which may go some way towards explaining it. If that's not how you're supposed to use Chrome (I'd understand if it wasn't) then I'd imagine some kind of notification to the user would be helpful. Something like: "Chrome may be a little slow, you have 1000 tabs open" including perhaps a table suggesting tabs that could be closed (i.e. if she's opened https://bbc.co.uk/news https://bbc.co.uk/news in 20 different tabs that were last accessed a month ago) and an easy mechanism to quickly do so. I actually know of quite a few people who use browsers this way, so it may not be a terrible idea to have something like this.