Synergy & TeacherVUE: Checking and Updating Your Version of Firefox on a Mac

Last modified on 04/03/2020

Shows how to determine which version of Firefox you are using and how to update to the currently supported version if needed.


The officially supported Firefox for Synergy and TeacherVUE is a special "Extended Service Release" (ESR for short) channel that is different from the standard version used by most people. If you experience issues with Synergy/TeacherVUE, a good first step is to make sure you are using the current ESR version of Firefox.


Checking Your Firefox Version

1. With FireFox open and the active application, go to the "Firefox" menu and select "About Firefox."  

About FireFox menu


2. If you see a screen like the one below with "Firefox ESR," then you have the correct ESR channel of Firefox. If you just see "Firefox" with a number, then you are not using the officially supported browser. If you are on the ESR track, make sure you are on the current release, following any update prompt you see in this window.

About FireFox - ESR version window


Downloading and Installing the ESR Version of Firefox

1. You will need Mac OS X 10.9* or newer to run the current* ESR version of Firefox. If you are on an older version of the operating system, please do a tech request to see if your computer can be updated.

*As of February, 2019. Current release is Firefox ESR 60.5.0, which requires OS 10.9 or newer.

2. To download the current ESR version of Firefox, please go to the Firefox download page and locate the "English (US)" version for the Mac. 

Firefox download page listing platforms and languages
Click the Mac download icon. This could be the perfect time to brush up on your Esperanto!  

3. When you download the file, it will download as a dmg file to the download location used by your web browser. Usually this is the desktop or "downloads" folder.

4. Once the download is complete, quit Firefox.

5. Double click the .dmg file to open it. 

6. This should open a window with the Firefox icon and a shortcut to the Applications folder.

7. Drag the Firefox icon on top of the Applications folder icon and let go.

FireFox dmg window


8. If you get a message about replacing Firefox, confirm this is OK. You may need to enter your computer login password to confirm this action. 

9. Open Firefox and go to the Firefox menu and select "About Firefox" to confirm you have the ESR version.  You should see a screen like the one near the top of this page.


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