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Following a backlash, the Mozilla Foundation declared on Thursday that it was hitting pause on any cryptocurrency donations until it could ensure the move “fits with our climate goals.”

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Mozilla received stinging criticism about Bitcoin's environmental record from a range of people, including a former founder of Mozilla, when it recently solicited donations via Bitcoin and other crypto tokens.

“Everyone involved in the project should be witheringly ashamed of this decision to partner with planet-incinerating Ponzi grifters,” said Mozilla co-founder Jamie Zawinski.

This was echoed by Peter Linss, the founder of Gecko, which was the company powering Firefox, who said Mozilla was “meant to be better than this.”

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Mozilla responded by promising to review its policy and saying, “Decentralized web technology continues to be an important area for us to explore, but a lot has changed since we started accepting crypto donations."

Bitcoin's environmental record has received criticism, with mining from Bitcoin gobbling up approximately 148 terawatt-hours of energy a year, according to an estimate from the Cambridge Centre for Alternative Finance.

Last May, Tesla also stopped accepting Bitcoin as a payment method for vehicles after backlash around its environmental footprint. In doing so, Musk conceded that Tesla was “concerned about rapidly increasing use of fossil fuels for Bitcoin mining and transactions, especially coal.” However, Musk said last month that it was experimenting with accepting memecoin Dogecoin to pay for merchandise. Earlier, the Tesla and SpaceX CEO said that it was still probable that Bitcoin might be accepted in the future, if renewables reached at least half of Bitcoin's mining rate.