Trying Firefox now. It's actually not that bad. It has many of the features that Opera refuses to reintroduce.
- Proper keyword searching in url bar (i can't delete the Y for Yahoo and assign it to Youtube in Opera)
- Showing full url's including http(s)
- A secure password manager with a master password
- Lots and lots of settings and if not available there's an addon for it
- Good tab history with undo close tab
- Tab groups (sort of like what tab stacking used to be)
- A nice syncing service.
And more.. Much more. It's also stable and fast enough.
It is these little things that make a browser worth using. As a power user, Opera has in my opinion completely lost track of what they used to find important. All the answers I keep finding sound to me like: "Not enough people were using it, we don't care, we do what we want and don't listen to you, the community is pointless so we're shutting it down, pointless features that other browsers already have will be priority, desktop is dead", etc..
I don't have the feeling that Opera will be back to the level it used to be before version 25, so until then, as much as it saddens me after 8 years of die-hardness, I will have to look for quality elsewhere.
Please keep us up to date with road maps and such, I really WANT to go back to Opera, it just sucks at the moment.