Quantum V66.0.5 - Mozilla Firefox

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.

A new ability to search through all open tabs via the tab overflow menu. Mozilla Firefox Quantum v66.0.5

Prevents web pages from "jumping" while images and advertisements load. Mozilla Firefox Quantum v66

The primary fix in v66.0.5 addressed a remaining issue where web extensions were still disabled for users with a master password set. released on May 7