When you right click on hovermenu on "contributions" in certain browsers (e. g., Firefox), it disappears. So if I want to open a "translation" in a new tab, I can not do that.
Right click works fine in Chrome and Firefox. If you right click in Chrome, the hover menu doesn't disappear. If you right click in Firefox, it disappears, but you still can open the link in a new tab (the hover menu disappears, but the browser context menu is there). I've just checked it in Konqueror, this works there just like in Firefox.
Don't uninstall FF now, both are good browsers :) Mouse wheel click works to open in new tab. I know not every device has mousewheel, like touchpads on laptops.
I think it's more likely that hover menu on "Contributions" goes through changes as ContentTranslation goes out of Beta, so this problem becomes obsolete. Let it be open since @Piramidion has updated the description to be true.
I didn't like FF while on Linux - it used to be very slow. On Windows it runs much better, indeed. As for a mouse wheel - I, personally, never use it's click function, and tbh, I didn't even know it can open links in new tabs as well, so thanks for the info.
As for the rest - I hope you're right. That problem doesn't concern me personally, I just want this tool to work as smooth as possible for all the users (and there're quite a lot of them).