The National Organization for Marriage (NOM) on Friday called on supporters to boycott Mozilla in protest of Brendan Eich stepping down as CEO of the company. NOM urged supporters to uninstall Mozilla's popular Firefox Web browser.

Eich lasted less than two weeks as CEO of Mozilla, stepping down Thursday over a $1,000 donation to the campaign to approve Proposition 8, California's 2008 voter-approved constitutional amendment restricting marriage to heterosexual couples. Proposition 8 stood until last year, when the Supreme Court left in place a lower court ruling knocking it down.

(Related: Brendan Eich steps down as Mozilla CEO over past support for Proposition 8.)

While Mozilla said that it was Eich's decision to resign, NOM President Brian Brown insisted that he had been forced out.

“When Brendon Eich [sic] made his modest contribution to support Proposition 8, Barack Obama was on the ballot as a candidate who said he believed marriage was the union of one man and one woman. Now Eich has been the target of a vicious character attack by gay activists who have forced him out of the company he has helped lead for years,” said Brown in a statement. “This is a McCarthyesque witch hunt that makes the term 'thought police' seem modest. We urge all consumers to remove Mozilla's Firefox web browser from their computers as a sign of protest”

“This attack to deny Mr. Eich his livelihood for supporting true marriage is a continuation of the shameful pattern we have consistently seen from gay activists. It basically says to all those in America and around the world who believe in a view of marriage that is consistent with the teachings of their faith that they are all bigots and haters and there is no place for them in civil society. This is the totalitarian worldview we will all be under if marriage ultimately is redefined in the law,” he added.

NOM has previously led several high-profile boycotts against publicly traded companies for their support of marriage equality, most notably Starbucks and General Mills, targeting the pocketbooks of company officials, workers and investors.