Mac addon help

I have used multiple clients in an effort to use add ons in game, originally i got an error upon login about all add ons and none of them were active, i used curse client and i have some show up in game not all, but barely work or poorly work. it says all are out of date, although I've updated. and yes, I've clicked allow out of date add ons. input GREATLY appreciated, thanks

You have to get addons for the client version you are using. Curse client will update them to latest version and they might not work on older clients. You have to download them manually and select the right version. Curse website has older addon versions also and there are other sites having all versions.