An online fundraiser launched by an Australian comedian has brought in more than $30 million for bushfire victims and firefighters.

Key points: Celeste Barber's bushfire appeal has so far raised more than $32 million

Celeste Barber's bushfire appeal has so far raised more than $32 million Donations have come from all over the world, thanks to her large social media following

Donations have come from all over the world, thanks to her large social media following Barber's mother-in-law has expressed her anger at the lack of support in Eden, NSW

Celeste Barber's Facebook appeal for the NSW Rural Fire Service and Brigade set a target of $30,000 when it was launched on Friday.

Three days later, it has raised more than $33 million — many of the donations coming from her substantial international following on social media.

Barber has more than 1.8 million followers on her Facebook page, and 6.5 million followers on her Instagram page — where she posts images of herself parodying celebrities' and models' Instagram posts and photoshoots.

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Donors to the Facebook page — which include people from Poland, Belgium, Romania, France, UK and the US — have left messages of support for bushfire victims and firefighters, as well as praise for Barber's efforts.

Responding to the rising fundraising total on Facebook, Barber described the response as "incredible" saying her followers were "out of control".

Having eclipsed her original target, she discussed the future of the appeal in a video posted to her page on Monday.

"So many people need help I can't wrap my head around it — so much wildlife — it's absolutely devastating," she said.

"I'm going to keep pushing — I think we get as much as we can. I mean, we've already got so much but we have to help people completely rebuild their lives.

"So I'm going to have a talk to the RFS today about where the money is going to go and I'll keep you guys up to date. Thanks so much world, again."

Other celebrities to raise funds for those affected by the bushfires include US singer Pink, Australian country star Keith Urban and tennis star Ash Barty while a host of other Australian sports people are also donating to appeals.

'We've been abandoned'

Barber's in-laws have also been caught up in the devastating bushfires in NSW.

On Sunday, she posted a message from her brother-in-law saying residents in Eden had been told to evacuate the wharf because their safety could not be guaranteed by authorities.

She also posted videos of her mother-in-law, Joy Robin, speaking to media on the wharf after she had been told to evacuate.

Ms Robin expressed her anger that the Defence Force were not in the area to help with evacuations.

"Please, get the word out there, they've just left us high and dry so many times," she said.

"We've been abandoned."

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A fundraiser set up on Gofundme by Port Macquarie Koala Hospital has raised more than $3.5 million for koalas affected by this season's bushfires.

While last week, families of two NSW South Coast bushfire victims revealed fraudsters had used their loved ones' images to scam donors in a fake online fundraising campaign.