Hacker News on 4 February 2020

• Google tracks individual users per Chrome installation ID
• Why Discord is switching from Go to Rust
• Ask HN: What Skills to Acquire in 2020?
• Firefox Preview adds support for recommended extensions, including uBlock Origin
• I found a WhatsApp security flaw that allowed hackers to read the file system
• Reviving Sandstorm
• A new hash algorithm for Git
• Mini projects built with VanillaJS. No frameworks or libraries
• Some Google Photos videos in backups were sent to strangers in November
• U.S. immigration policy has been a boon for the tech industry in Canada