Facebook has removed the official page of far-right group Britain First, along with those of party leader Paul Golding and deputy leader Jayda Fransen.
In a statement, Facebook said content posted on the Britain First page and on the pages of Golding and Fransen ‘repeatedly’ broke the site’s guidelines.
Pages are not removed just because some people don’t like them, the social media site added.
Both leaders were jailed for anti-Muslim harassment earlier this month.
Golding and Fransen were found guilty the hate crime last year after they branded Muslims as paedophiles and rapists.
Both were sent to prison for 18 weeks and 36 weeks respectively at Folkestone Magistrates’ Court.
Facebook said they had continued to violate its rules despite issuing written final warnings over their conduct.
‘Content posted on the Britain First Facebook page and the pages of party leaders Paul Golding and Jayda Fransen has repeatedly broken our Community Standards,’ Facebook said.
‘We recently gave the administrators of the pages a written final warning, and they have continued to post content that violates our Community Standards.
‘As a result, in accordance with our policies, we have now removed the official Britain First Facebook page and the pages of the two leaders with immediate effect.
‘We do not do this lightly, but they have repeatedly posted content designed to incite animosity and hatred against minority groups, which disqualifies the Pages from our service.’
Facebook confirmed the violating content included an image of the group’s leaders with the caption ‘Islamophobic and Proud’ and multiple videos which Facebook said had been posted deliberately to incite hateful comments against Muslims.
The social network also confirmed that the group will not be allowed to set up an official Facebook page in the future.
Following its suspension from Twitter in December, Mr Golding said the group was looking for new social networks to join and urged supporters to follow.
Prime Minister Theresa May told the House of Commons that she welcomed Facebook’s decision, and Mayor of London Sadiq Khan also praised the move.
‘Britain First is a vile and hate-fuelled group whose sole purpose is to sow division,’ he said.
‘Their sick intentions to incite hatred within our society via social media are reprehensible, and Facebook’s decision to remove their content is welcome.
‘The global tech revolution has brought incredible benefits and social media is enjoyed by billions of people around the world. But big social media companies must wield the power they’ve amassed responsibly.
‘I call on social media platforms to show a stronger duty of care, so that they can live up to their promise to be places that connect and unify, not divide or polarise.
‘We know more can be done to remove content from people or groups who misuse these platforms for the purpose of inciting hatred or dividing communities.
‘I trust the decision made by Facebook today reflects a genuine desire to do more to protect people online and I urge others to follow suit.’