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

Constant Freezing and "Not Responding"

  • 1 phendula
  • 0 inale ngxaki
  • 1 view
  • Impendulo yokugqibela ngu Matt

more options

There have been numerous posts about freezing. I have tried all of the suggested fixes - deleting and disabling Add-Ons, reloading Thunderbird, etc. etc. But it continues to constantly freeze and says "Not Responding" - sometimes taking 20 to 30 seconds to unfreeze - other times I have to wait several minutes for it to unfreeze. I have used TB for many years, but it is now becoming unusable.

There have been numerous posts about freezing. I have tried all of the suggested fixes - deleting and disabling Add-Ons, reloading Thunderbird, etc. etc. But it continues to constantly freeze and says "Not Responding" - sometimes taking 20 to 30 seconds to unfreeze - other times I have to wait several minutes for it to unfreeze. I have used TB for many years, but it is now becoming unusable.

All Replies (1)

more options
What have you tried?
I have tried all of the suggested fixes - deleting and disabling Add-Ons, reloading Thunderbird, etc. etc.

That is just going to lead to more replication of suggestions because it does not actually say what you have tried.

My personal best suggestion is to rebuild the global database https://support.mozilla.org/en-US/kb/rebuilding-global-database.

Then move on to https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems

Despite what it says on the web site. Thunderbird needs at least 8Gb of ram and free disk space on the profile drive around twice the size of the profile. Generally this is some gigbytes free on both the system drive and the profile drive if it is not the default.