You can use feedly directly on https://feedly.com and if you want a companion in your toolbar there are feedly extensions available on AMO (that button will help you there).
ChatZilla has to replaced by another IRC client, like Thunderbird, Hexchat, irccloud, mibbit etc.
For the other extensions I can’t really help you, though with CTR it really depends on what you used it for and I’m sure there’s some google translate extension on AMO that will fit you.