Mozilla — Firefox Quantum V66.0.5

As part of the broader Firefox 66 release, this version includes:

A new ability to search through all open tabs via the tab overflow menu.

Mozilla Firefox Quantum v66.0.5, released on May 7, 2019, was a critical point update primarily focused on resolving a significant bug that caused browser extensions to be disabled.

Prevents web pages from "jumping" while images and advertisements load.

Automatically prevents websites from playing sound-enabled media.