The internal emails also detail discussions regarding the collection of call and text logs from Android users.
The release of the internal documents adds to Facebook's challenges as it wrestles with issues as varied as how it enabled the spread of misinformation and whether it properly safeguarded the data of its users.
In 2015, Facebook changed its developer API settings in order to stop developers from seeing data from friends of users who had downloaded their apps.
Though the direct payments never came to pass, the point is that Facebook knew that its users were valuable to other companies, and believed that it should receive equal value for making them available.
Damian Collins, head of the committee, added that Facebook shut off access to data required by competing apps, conducted global surveys of the usage of mobile apps by customers possibly without their knowledge, and that a change to Facebook's Android app policy that resulted in call and message data being recorded was deliberately made hard for users to know about.
The U.K. committee seized the documents from app developer Six4Three, maker of a now-defunct bikini-picture search app. Six4Three acquired the files as part of a US lawsuit that accuses Facebook of deceptive, anti-competitive business practices.
UK parliament releases internal Facebook documents
Don't forget: It's all about apps hosted on Facebook's platform and their access to friends' data, an especially important topic in the light of the Cambridge Analytica scandal earlier this year.
In 2013, such information showed that messaging program WhatsApp was more popular than Facebook's Messenger app and a year later Facebook purchased WhatsApp.
In one email, dated January 23 2013, a Facebook engineer contacted Zuckerberg to say that rival Twitter Inc. had launched its Vine video-sharing tool, which users could connect to Facebook to find their friends there. "However, for folks like WeChat, we need to enforce a lot sooner".
You can check out the full 250-page document dump including the DCMS's summary at the United Kingdom parliament's website.
'Yup, go for it, ' chief executive Mr Zuckerberg is said to have responded. The Royal Bank of Canada requested access in one note, as did the dating apps Badoo and Hot or Not. In other words, it exchanged user data for other considerations. The good news about full reciprocity [where apps let users share their activity back to Facebook] is that for bigger social companies we might otherwise be anxious about, if they're enabling their users to push all of their social content back into Facebook then we're probably fine with them.
In other documents, employees outline potential ways to keep other services from using data collected from the social network in order to build their own services. "We've never sold anyone's data". This would be a momentous decision for any company, to say nothing of one with Facebook's privacy track record and reputation, even in 2015, of sprinting through ethical minefields. The company limited app developer access to lists of friends, other than those also using the same app, in most cases, according to the statement.
"However, that may be good for the world", Zuckerberg added", but it's not good for us unless people also share back to Facebook and that content increases the value of our social network".More news: Luka Modric Expresses Desire to Retire at Real Madrid