Wrong, because first off, you took out the word "potentially" and removed it from your take on my observations, which happened to notice "potentially unstable" aspects of that extension. Second, go to Chris Pederick's User Agent Switcher Help Page and look at the first item under "Install" and the second question under "FAQ" there. FF Extensions that have possible issues like these upon launch/shutdown/install/uninstall never get installed by me because I keep my profile stable. I have some rather nasty criteria when picking out extensions, and if they don't pass that, they don't get near my FF profile. 'Nuff said on that. <_< As for this... But from this it sounds like you're using an outdated version of FireFox, because loading bookmarks/history in the sidebar is no longer the default action (it's an overlay now). Is that the case? Running an FF 3.5.x-series browser here. A bit antiquated, but stable and within the minimum specs required for even the new site's beta version. I might slide up to FF 3.6.x-series, but that will only be if I can confirm all the extensions both I and my family use will make it over the barrier. :geek: On the other half of the matter, here's another spot where you're wrong, because I did some considerable research on Mozilla's Support Site last night while I was away from Tip.It. During that research, I found out that the sidebars are still possible to be called in the same ways as they always have been since FF 3.0.x-series, via keyboard shortcut, view menu, and toolbar button. Those are the methods I generally use, so it normally doesn't open as an overlay (or as a window, in the version I use) for me. The overlays/windows are called via the bookmarks/history menus, but I don't use those unless I have to get really deep, as the sidebars do what I ask very perfectly. Further, I just ran another stack of research as I composed this post, and found that "Load in Sidebar" is still possible on bookmarks even in later FireFox versions. In short, the intended functionality and methods have not disappeared. :shades: ~D. V. "Looks like I haven't fallen through a dimensional warp..." Devnull (p.s.: Thanks for the Forum Burnout... Now to go relax my brain... ugh...)