https://chrome.google.com/webstore/detail/ipfuck/bjgmbpodpcgmnpfjmigcckcjfldcicnd?hl=en-US
IPFuck generates random IPs and fake the use of a proxy with HTTP headers.
It can make you anonymous on several websites.
https://chrome.google.com/webstore/detail/trackmenot/cgllkjmdafllcidaehjejjhpfkmanmka?hl=en-US
TrackMeNot is a lightweight browser extension that helps protect web searchers from surveillance and data-profiling by search engines. It does so not by means of concealment or encryption (i.e. covering one's tracks), but instead, paradoxically, by the opposite strategy: noise and obfuscation. With TrackMeNot, actual web searches, lost in a cloud of false leads, are essentially hidden in plain view. User-installed TrackMeNot works with the Chrome Browser and popular search engines (AOL, Yahoo!, Google, and Bing) and requires no 3rd-party servers or services.
https://chrome.google.com/webstore/detail/automated-free-proxies-di/ojjklffhhhfpeaelghfocilljceokage?hl=en-US
CIAO identifies trusted and working free proxies using its own community. CIAO is instrumented to collect anonymous data about proxy performance and behavior (e.g., amount of data downloaded, page download duration). This data is reported to our servers as an input for the proxy selection algorithm. To bootstrap this process, our servers discover free proxies by crawling proxy aggregator websites. Each proxy is then tested daily to verify reachability, performance, and behavior.
(useful for sites like mega.co.nz)
https://github.com/dhowe/AdNauseam/wiki/Install-AdNauseam-on-Chrome-Without-Google‘s-Permission