Is it normal to have pinned tabs eating up so much RAM. The other day I had a bunch of apps open across 4 desktops and I noticed my computer was running slowly, so I went and checked Activity Monitor, and my pinned tabs each were using 250 MB! Is this normal to have tabs eating this much RAM? I have a screenshot from just a minute ago, showing what I mean. These are not as bad as they were, but they are still almost at the top of the list.