You could use uBlock Origin and disable javascript by default, it's availavle on mobile. When necessary you can also reenable it for specific sites, works prett

You could use uBlock Origin and disable javascript by default, it's availavle on mobile. When necessary you can also reenable it for specific sites, works pretty well for me. Also neat: you can disable media elements over a certain size (default is 50kb I think), which is a godsend if like me you have limited mobile data.