Chrome already contains a protection against the Specter bug, you just have to enable it
We have already talked about Specter, and unfortunately the topic is not finished here, because the updates to limit the damage have not yet been delivered to everyone. Microsoft and Apple have already been busy but are missing the Google appeal. To receive the update of Chrome that solves the problem will have to wait for January 23, 2018, with the release of version 64. For now, however, you can enable a feature developed by the Chromium team, called Site isolation. This is a feature, to be enabled, which allows pages to be routed on different processes executed inside sandboxes, in order to be able to limit the damages deriving from these security holes. Developed for Chromium, and therefore also available for Chrome, and to be activated you need to access the page chrome: // flags # enable-site-per-process, enable the Strict site isolation and restart the browser. In this way the risk that sensitive information will be stolen using scripts that exploit Specter will be reduced.