

I run Firefox with uBlock Origin in my work as well as private device for > 2 years without any issues including tricky applications like Citrix, Virtual Desktops etc.
On my mobile, I use Fennec with uBlock Origin, Decentraleyes and PrivacyBadger and sometimes have some small issues, so I have to view the page in Desktop mode instead.
But compared to a web full of ads, it’s a difference like day and night. Definitely won’t go back any time soon!
You should specify what kind of trip you are looking for. If you like mountains I’d prefer Spain (Picos de Europa, Pyrenees) and France (Alps, Pyrenees) over Portugal.