Hi Danyl,
MongoDB 3.0 introduced some new features including a new default authentication method (SCRAM-SHA-1) and a new listCollections command for pluggable storage engines like WiredTiger.
For full compatibility with MongoDB 3.0, older tools and drivers need to be updated. Many already have been, but a few (such as MongoVUE and Robomongo still have updates in progress).
You can find a community-maintained list of tools in the GUI category on:
http://mongodb-tools.com. There should be an update soon allowing you to filter tools by compatibility (MongoDB version in addition to the O/S Platform).
If your favourite tool hasn't been updated yet, I would check with the vendor or project and see if they are working on an update. The complexity of the update depends on the tool; in some cases they may just be able to drop in 3.0-compatible driver but others may have more effort involved.
Regards,
Stephen