It's configurable from the sidebar dropdown menu, e.g. when opening your bookmarks (Ctrl+B):
But you can also use this about:config setting:
Again you keep calling it a popup, but it really isn't. It does not pop up or overlay the browser viewport, it sits on the right and pushes the viewport left reducing its width.
There's the Danish company Lyngdorf, who make the CD-2. It costs a whopping €2999,- though. NAD is Canadian and makes CD players around the €400 mark. If you consider Canada an honorary EU member that's an option ;)
Aren't there several companies that donate to both running candidates, just in a 'betting on both horses' kind of way? Just making sure you're in good graces with whomever becomes president.
Perhaps https://www.cheapasssunglasses.com/ ? While the shop is European (Dutch), I expect the glasses are made in China.
I've donated in November after I switched back to Firefox as my main browser. I read about the search deal dependency and wanted to contribute to what Mozilla called "reclaim the internet". Feel something akin to 'buyer's remorse' when I now read how little goes to development of Firefox/Gecko (the only multi-platform alternative engine for rendering the internet) and how much goes into CEO salaries.
No, there are 'workspaces' -accessed via the buttons on the bottom of the vertical tab bar-with their own tabs, but you can't group tabs within one workspace (yet). And yes I can open the sidebar -which is not a popup- on the other side. The thing that's popping up on the left next to the tabs and overlays the site is what Zen calls the web panel.
That's Denmark (Danish), this article is about The Netherlands (Dutch).
I don't envy the man at all. Horrible limbo position he's in with no mandate of his own.
Really love(d) using it too the last week, but I can't live with the horrendous font rendering. Especially small/thin or light text on dark background (darkmode themes). Luckily the latest FF releases are adding a lot of vertical tab related functionality, theres tab groups and you can hide the title bar now.
Welcome to today's episode of 'How to screw over your own prime minister and lose your credibility as a country on the EU stage'. Disclaimer: I'm Dutch.
That popup you mention sounds like the zen web panel rather than the sidebar. In total that gives 3 concepts: vertical tabs, a floating web panel next to that and the sidebar. I like what they're trying to do, but it's not all polished yet with some odd UI glitches or things requiring (re)configuring like the toolbar. That combined with bad font rendering and missing tab groups made me switch back to FF for now...where I now disabled all usage data sharing options.
A popup is overlay / in front of your viewport or UI, the sidebar is not in front of it. If what you see is (like a) popup, you're talking about the web panel, which a different concept Zen added. Indeed in Firefox the vertical tabs are part of the sidebar and thus they can't be move independently. In Zen, the vertical tabs are NOT part of the sidebar, and thus you can move the sidebar to the right while the tabs remain on the left.