


Important: If the update didn't start, didn't complete or there was some other problem, you can go to the Systems & Languages page to download and install the latest version of Firefox for your system and language or you can use this download link (see How to download and install Firefox on Windows Install Firefox on Linux Firefox 45 Download How to download and install Firefox on Mac Download Mozilla Firefox 45.0 Version For Mac for more information). Firefox will check for updates and download them automatically.

On the menu bar click the Firefox menu and select About Firefox. Mainstream Firefox is on version 91.0.1, but the ESR version as of is at version 78.13. Click the menu button, click Help and select About Firefox.This article only applies if you installed Firefox manually (without using your distribution's package manager). Yes, that's right, Mozilla will officially unveil Firefox 45.0 today, March 8, 2016, but right now there's no announcement on the website or any download links. Note: If you use your Linux distribution's packaged version of Firefox, you will need to wait for an updated package to be released to its package repository. Fix a regression impacting some specific uploads ( 1255735) Fix a crash impacting the video playback with Media Source Extension ( 1258562) Fix a regression with the copy and paste with some old versions of some Gecko applications like Thunderbird ( 1254980) Fix a web compatibility regression impacting the srcset attribute of the image.
