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.

Search Support

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

THUNDERBIRD EMAIL PAGE FLICKERING AFTER LATEST UPDATE

  • 3 replies
  • 0 have this problem
  • 2 views
  • Last reply by Toad-Hall

more options

Since recent update (115) my Thunderbird page is constantly flickering. The flickering is on half the page but I cannot fixit. Looking for help to fix Thunderbird which I have been using for many years.

Since recent update (115) my Thunderbird page is constantly flickering. The flickering is on half the page but I cannot fixit. Looking for help to fix Thunderbird which I have been using for many years.

All Replies (3)

more options

1. Check your computer Graphics driver is up to date.

  • Exit Thunderbird.
  • Update the Graphics driver.
  • Start Thunderbird.

If you still see a problem: 2. Switch off hardware acceleration.

  • Settings > General
  • Scroll to bottom and uncheck 'Use hardware acceleration when available'
more options

Thank you for your quick response. Unfortunately neither of those suggestions worked. I have uninstalled and reinstalled several times to no avail. Also I change the layout and next time I open Thunderbird it has deleted my selection. These problems only started with the last couple of updates. Never had a problem before. Do you have any other suggestions to help as I don't want to change from Thunderbird if I can help it. John. PS>>>> I was hoping to attach a video to this but it will only allow a photo

more options

In 'Addons & Themes'

What 'Theme' are you using - 'Dark' or 'Light' or 'System Theme' ?

In 'Extensions' - what addon extensions have you installed ?


re: Also I change the layout and next time I open Thunderbird it has deleted my selection.

That sounds like either something is not getting updated or something is deleting session files so they cannot update files on exit. In the past I've come across products like CCleaner which clean up files and they can cause havoc.

1. Do not allow any Anti-Virus or malware type of product or any thing like CCleaner or WiseCleaner to have access to your thunderbird profile folders. Please Exit Thunderbird and then access those type of products and make Thunderbird an exemption not to scan that folder or anything it contains. Your 'Thunderbird' profile folder is located here - assuming you are using Windows OS and profile is in default location.

  • C://Users/User name/Appdata/Roaming/Thunderbird

If you did have those products scanning etc then maybe it will fix the loss of session and updating of files.

2. However in addition you can safely do the following just in case you have some corrupted files. It recreates them upon restart.

In Thunderbird

  • Help > Troubleshooting Information
  • Under 'Application Basics' - half way -Profile Folder - click on 'Open Folder'

It will open in a new window showing you the contents of your profile name folder.

  • Exit Thunderbird now.

Delete the following files:

  • global-messages-db.sqlite
  • session.json
  • xulstore.json

Start Thunderbird.