Mozilla Monitor website will be down for 2 hours starting 5/20/2025 at 6 AM PT. Visit our status site for updates.

Avatar for Username

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How do I find which version I have currently running?

  • 4 replies
  • 1 has this problem
  • 343 views
  • Last reply by cor-el

Pauline4846
Pauline4846

My Firefox updated/upgraded itself the other night. I am having difficulty with a forum I use that was recently upgraded, and doesn't seem to have undergone Beta testing so there are a lot of difficulties. The major problem I am now having with it is that I have to switch to Chrome in order to post on it. Someone recently suggested that I notify the website which version of Firefox I am running so that they can send me a fix. The person said I could find it under About. But I can't find About. Does anyone know where it shows?

My Firefox updated/upgraded itself the other night. I am having difficulty with a forum I use that was recently upgraded, and doesn't seem to have undergone Beta testing so there are a lot of difficulties. The major problem I am now having with it is that I have to switch to Chrome in order to post on it. Someone recently suggested that I notify the website which version of Firefox I am running so that they can send me a fix. The person said I could find it under About. But I can't find About. Does anyone know where it shows?

Chosen solution

You are running Firefox 57. To see the version you are running, you can simply click the three lines in the upper-right hand corner of Firefox, then Help, then "About Firefox".

Read this answer in context 👍 3

All Replies (4)

user633449
user633449

Chosen Solution

You are running Firefox 57. To see the version you are running, you can simply click the three lines in the upper-right hand corner of Firefox, then Help, then "About Firefox".

Pauline4846
Pauline4846 Question owner

Thanks very much for the quick answer. I followed your directions to About, and there it was!

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor

Do you get a particular error message on the forum that we might be able to help with?

I also would suggest "the usual" if you haven't already:

If a site is generally known to work in Firefox, these are general suggestions to try when it stops working correctly:

Cache and Cookies: When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Clear Firefox's Cache

See: How to clear the Firefox cache

If you have a large hard drive, this might take a few minutes. If you do not see the number going down on the page, you can reload it using Ctrl+r to check progress.

(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • right-click (on Mac Ctrl+click) a blank area of the page and choose View Page Info > Security > "View Cookies"
  • (menu bar) Tools > Page Info > Security > "View Cookies"
  • click the padlock or "i" icon in the address bar, then the ">" button, then More Information, and finally the "View Cookies" button

In the dialog that opens, the current site should be pre-filled in the search box at the top of the dialog so you can remove that site's cookies individually.

Then try reloading the page. Does that help?

Testing in Firefox's Safe Mode: In Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, and some other advanced features to help you assess whether these are causing the problem.

If Firefox is not running: Hold down the Shift key when starting Firefox.

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Any improvement?

cor-el
cor-el
  • Moderator

You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)