My little one has started at 10 months having tantrums they are normally when I don't let her do something as it's not safe or out of frustration or lack of being able to communicate which is totally normal.
When mine started throwing tantrums and grabbing with intent (it's usually my glasses), she was around 11 months. She did sometimes show temper before that though. It was usually very brief, and what I would do was put her down and let her scream it out. She'd get over it in under a minute, then we would go back to normal or distract, etc. The difference between tantrums and screaming for a need (at least in our experience) is that tantrums end once they get their frustration out, whereas with a need they will keep screaming until the need is met.
My baby had her first tantrum around this time also doing these things and throwing her head back. They’re just frustrated and if all their basic needs are met try just holding her and rocking her or singing a song she likes. There would be times where my baby was just throwing one for what seemed like no reason so I sat there with her as she let it out on her play mat and when she was done she came back to me or her toys. Every baby is different so it might take a couple tries to find out what helps her out the best 💜