Thunderbird upgrade having Norton problems

Thunderbird (currently 102.10.0) became extremely slow at reading emails when I went from 91.13.1 to 102, I'm not sure of the full version but I believe it was 102.3.0 . TB no longer correctly reports whether or not I have emails waiting when I first log in. The size of the emails doesn't appear to be relevant. It may be as little as just a couple of lines of type or it may include attachments. The length of time to download is about the same at anywhere from 20 seconds to 1+ minutes. When I track it on the task manager, of the 4 images of TB there are always 2 images of TB seemingly active at the same time when I Get Message. One image is very large while the other is much smaller relatively. All of this with both the Scam Detection and Antivirus turned off. After reading a number of the entries on the forum, I performed some of the steps suggested. Here is a synopsis of what I did and what I saw.

Put TB in SAFE mode. Sent a message. Did Get Message(GM). Task manager showed only one large TB image active, not the usual two mentioned above. Download was the usual long time. Sent a second message and had the same results. Turned off SAFE mode. Did another Send and Get 2 more times. Task manager showed the two images active. Response times were slow. Turned on SAFE mode again and repeated as above. Results were the same - one active image and slow response.

Started Windows 7 Pro in SAFE mode with internet. Started task manager and TB in normal mode. Sent a message. Did Get Message and the mail was downloaded immediately. Sent a second message and had the same result.

Started Windows in normal mode. Turned off email antivirus and smart firewall features in Norton 360. Repeated test scenario as above. The results were the same as I stated in the begining of this submission.

If there is anything else I can add that would help me to get Thunderbird back to normal, please let me know.

Thanks for the post back. Please reply here with your results so that we can assist further is needed. And, if the issue is resolved others can then see your solution if they have the same issues appear. 

SA

Hi SA.

   I was hoping there would be another option.  I'm really concerned about the possibility of losing everything I have if I run into difficulties.    According to Mozilla there is a new and improved TB coming in July.  I'm thinking  there will be a new install required since it would appear to be a major upgrade.  Rather than risking 2 installs in a short period of time, I'm thinking I'll wait for the dust to settle on the upgrade and tackle that install with the hopes it will solve my problems. 

I checked with them previously and just checked again.  They haven't experienced any other users with the problem.

Thanks for the suggestion.

I am not seeing any issue with my Thunderbird, but on Win 10.  

Who is your email provider? Maybe check their support forums to see if others are seeing the issue on Win 7 systems.

 

My next suggestion is to uninstall Thunderbird and reboot. Then reinstall the latest version that I posted the link for. Lets see if a clean install of Thunderbird makes a difference.

SA

Hi SA.

    Thanks for getting back to me.  I did as you suggested.  The result is as I expected.  Nothing has changed.  There have been a number of updates since 102.3.0 and I have put all of them  on without seeing any improvemnet.  If this was a Thunderbird issue I'm sure I would not be the only one with the problem.  I would appreciate any other suggestions you might have.

   

Hello DoPhi. There is a newer version available. Download the latest version at this link, install and reboot, recheck for your issues persisting:

https://download.mozilla.org/?product=thunderbird-102.11.2-SSL&os=win64&lang=en-US

SA