Instead of marking Questions as favorite, can I mark specific answers as favorite?
This would help me to keep all my favorite tweaks/tricks/solutions at one place (favorite tab)
Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Visit Stack Exchange
No it is not possible to favorite an answer in SE. You can only favorite a question.
Maybe you can change this to a feature request, though I doubt it'll be accepted or implemented in the near future.
Meanwhile however, you can bookmark or save a link to the answer you wish to favorite in your own browser.