The site went down amid its fight with Republicans over blocking certain content.
Microsoft said its bid for the popular Chinese-owned video app has been rejected by Bytedance, a week before Trump planned to ban it in the U.S.
Facebook software engineer Ashok Chandwaney has publicly quit, accusing the company of violating its core values and of "profiting off hate."
The new feature will let Instagrammers record 15-second videos with audio and visual effects.
ByteDance agreed to divest from U.S. operations of the app after President Trump said he planned to ban it entirely, according to sources.
Citing "an escalating degree of harm associated with the conspiracy theory," the company says it's limited the QAnon-related activity of about 150,000 accounts.