Is there a way to open a predetermined list of websites at once?
Say I define different contexts or workspaces. So in my address bar I can type work and it will open up 5 pages that will be associated to that keyword. Then I can type bored and it will open up my 4 defined pages associated to that keyword.
I am NOT asking about pinning pages to the start/home page, and I am NOT asking about loading websites when Firefox starts up (because I don't want to always load the same things every time I launch ffox). I am also not asking about pinning tabs.
You can also middle-click the bookmark folder itself.
Or you can open a second window, open all your work sites, then pin the tabs. If you have at least one pinned tab in the first window as well, even if that pinned tab is just about:blank, both windows will re-open when reopening firefox.
For some reason, I've never been able to get pinned tabs to actually persist. I'll pin the tabs, and then when I shut down Firefox and bring it back up later, the tabs are randomly gone / no longer pinned for some reason.
This seems like a really cool implementation, but I cannot get it to open anything beyond the first site I put into the array. I am never prompted about opening multiple tabs, either.
That's weird. The only reason I can think of is, if you have tweaked with userChrome.css, the toolbar with the question may not be visible. I say that because it has happened to me :). You can try restarting with add-ons disabled (via about:profiles) and see if there is any difference.
EDIT: Another option would be that there is some setting I've changed to allow this. But if I did, I don't remember doing it :/.
I use tabs aside, it lets you define and load/unload sets of tabs from the sidebar. Does pretty much what you're asking for minus the addressbar keywords.