>>eatbit+(OP)
I used to have a cronjob to change them to what I want daily. Only worked for sites with an API, but was better than the user hostile "we know your preferences better than you" garbage.
>>eatbit+(OP)
With Facebook, you can get around this by bookmarking https://www.facebook.com/?sk=h_chr and going there instead. It's worked reliably for years - though there's now so little of value there it hardly matters, I suppose.