Zuckerberg detailed his vision about the next decade in virtual and augmented reality, including future Oculus VR devices.
The CEOs were to testify on Section 230 of the Communications Decency Act, which protects tech companies from liability over the content posted by users on their online services.
Both Facebook and Twitter faced backlash from the Republicans and US President Donald Trump for their move to block and censor the article that appeared in The New York Post and was critical of Joe Biden.
Zuckerberg declares his 2018 resolution is to “fix” Facebook.
The CEOs will testify on Section 230 of the Communications Decency Act, which protects tech companies from liability over the content posted by users on their online services, reports CNBC.
In 2019, Cook received a $3 million salary and a $7.67 million bonus. After adding stock, he took home over $125 million.
"Apple has agreed to provide a brief, three-month respite after which struggling businesses will have to, yet again, pay Apple the full 30% App Store tax."
"I am calling you both to HELP STOP THIS. Please shut down groups and users focused on spreading hate speech violence and misinformation. Our future depends on it."
"We've also offered free ad credits to every state election authority so they can recruit poll workers across our platforms,"
Facebook recently acknowledged that Apple's upcoming iOS 14 may lead to over 50 per cent decline in its Audience Network advertising business.
"The US elections in 2016 exposed the risk of social media being abused to interfere in elections, and misinformation and political polarisation clearly play out on social media platforms too."
"We're staying focused on building communities for the more than 380 million people who play games on Facebook every month -- whether Apple allows it in a standalone app or not."
The Facebook CEO said the company is going to continue to enforce its policies and continue evolving them to be able to identify more potential dangerous organisations.
Trump issued another executive order on August 14, giving ByteDance an option to divest its TikTok business in the US within 90 days.
The strong earnings report helped Apple shares closed up 10.47 per cent to become the world's most valuable publicly traded company, surpassing the largest oil producer in the world.
"To give employees the ability to plan ahead, we are extending our global voluntary work from home option through June 30, 2021, for roles that don't need to be in the office."
Talking to analysts during an earnings call on Thursday, Zuckerberg said that a lot of people use WhatsApp, especially in India.
"In hindsight, it probably looks obvious that Instagram would have reached the scale that it has today. But at the time, it was far from obvious."