Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Mozilla Support में खोजें

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

Strange green digits and symbols in browser window

  • 3 प्रत्युत्तर
  • 1 यह समस्या है
  • 2 views
  • के द्वारा अंतिम प्रतियुतर Tom J

more options

In the last days I notice green digits and sometimes dots in the browser window when I move the mouse. They show only in Firefox (not in desktop, other programs or browsers). Have up to date Firefox, only two plugins (Adblock and ublock, did switch them off no change). This number change position, blink, and change value when I move mouse, they are on all tabs, all websites. They appear not only on website content, but on top of Firefox window. Did scan computer with Defender, Bitdefender, adwcleaner, Malwarebytes all clean.

After CCleaner cleaning it stop (for now)

Firefox 79.0 on Windows 10

Any ideas?

In the last days I notice green digits and sometimes dots in the browser window when I move the mouse. They show only in Firefox (not in desktop, other programs or browsers). Have up to date Firefox, only two plugins (Adblock and ublock, did switch them off no change). This number change position, blink, and change value when I move mouse, they are on all tabs, all websites. They appear not only on website content, but on top of Firefox window. Did scan computer with Defender, Bitdefender, adwcleaner, Malwarebytes all clean. After CCleaner cleaning it stop (for now) Firefox 79.0 on Windows 10 Any ideas?
संलग्न स्क्रीनशॉट

All Replies (3)

more options

To be honest I have not heard of this one before! I have a Mac but did Windows for years so the best I can do is make some suggestions to see if they work: 1. Start Firefox in Safe Mode and see if it still does it. 2. Clear your Firefox Cache Preferences/Privacy&Security/Cookie and Site Data/Clear Data (This will also sign you out of all Sites IE:Google, Amazon and such). 3. And if all else fails you can try refreshing your copy of Firefox and start over.

 The suggestions that I have made applies if you have Windows or Mac.
more options

Yes I did that, now problem is gone (for now) but what is that, why, how :)

more options

If you are talking about clearing your Cache Web sites downloads data to your web browser and sometimes that data gets corrupted (happens more often the not)! There is really no one cause to this the best I can say is that Stuff Happens. I really have found if weird stuff happens is that the Cache needs cleaning and or a update to a installed extension or a new extension is causing problems. And if my Browser starts working slowly I will clean my Cache also. And that can be said about all Web Browsers no matter what OS you are using. And sometimes your Antivirus and Firewall can causes problems also.