NSW parliament has been urgently recalled to pass legislation cutting across multiple areas, including laws to cap gun ownership at four firearms with some exemptions and limit magazine capacity.
Banning protests during a terrorism designation also has the numbers to pass despite strident opposition from civil liberties groups.
Opposition Leader Kellie Sloane pledged the Liberals' support for gun reform after the December 14 shooting attack, meaning the full suite of changes are expected to become law.
But she expressed "serious reservations" about the legislation being rushed through parliament.
"That is not best practice law-making, particularly in an area as sensitive and consequential as counter-terrorism and community safety," she said in a statement on Monday.
"The NSW Liberals will therefore use the parliamentary process in the coming months to ensure these reforms are implemented in a way that genuinely meets their stated objectives."
The Liberals' junior coalition partner the Nationals came out against the gun reforms, saying they applied arbitrary limits and didn't give regional businesses the tools they needed.
"The proposed reforms would not have stopped last Sunday's attack and fail to address the root cause of the issue - anti-Semitism," the rural party said in a statement.
NSW Farmers branded the gun changes unworkable, saying changing licence renewal periods from five to two years was ridiculous and requiring farmers to join a gun club, which could be hours away from their property, was burdensome.
But the Liberals' support will be enough to ensure the laws' passage, along with controversial protest restrictions that will ban public assemblies once a terrorist designation has been made by police.
The designation will last 14 days and can be extended for up to three months.
Civil liberties groups have come out against the ban, branding it overreach, while pro-Palestinian protesters have derided any link between peaceful demonstrations criticising Israel and the Bondi terrorist attack.
A father-son duo with apparent Islamic State motivation carried out the attack on Hanukkah celebrations, leaving 15 people dead.
Mr Minns blamed pro-Palestinian protests for breeding anti-Semitic rhetoric, saying those acts could develop into violence as "it's unleashing forces that the organisers of the protests can't control".
The Jewish Council of Australia's Naama Blatman accused the premier of politicising grief and tragedy to pass laws that stifled freedoms.
"These laws are born of political pressure, not a genuine consideration for the safety of our communities," she said.
"What happened in Bondi was an evil anti-Semitic attack, but let it be very clear, there is nothing connecting this attack to the movement for justice in Palestine, to the protests we held, to the marches we shared, the movement we built together."
Josh Lees from the Palestine Action Group, which organises weekly protests in Sydney, said people who tried to link demonstrations to supporting terrorism were spreading misinformation.
An Islamic State-inspired attack had nothing to do with Palestinian liberation and the protest movement opposed anti-Semitism, with thousands of Jewish people joining marches against the war in Gaza, he said.
No protests were currently being organised due to the sensitivity of the situation, Mr Lees added.
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