@rtomasz Thank you for the quick reply. I ended up doing that but now I have another hiccup. The favorites from my Edge bookmarks bar. How do I add them to the bookmark bar in Opera? I've tried moving them to it one by one but it won't let me do it, Thanks for your help
@mopw69 maybe such "miracles" happen through a virtual machine. But you do not have to combine it. Just install the developer version on a pendrive or HDD/SSD as portable. Only, of course, indicate a different location than installing your stable Opera.