We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

after updating to 38.0.1 fm 15.0.1 gets incoming email messages but then hangs the entire syst CAUSE: HWA

  • 4 uphendule
  • 10 zinale nkinga
  • 4 views
  • Igcine ukuphendulwa ngu Platrix

more options

I was on auto update release channel but had not been asked to update since 2012. Now 38.0.1. Freezes (need power down to restart) my W7 Pro after receiving last incoming email. Disabling add-on's did not help. I removed calendar. Am able to send fine. Any thoughts? Thanks in advance (Note I will probably have to turn off and restart after receiving your reply so if there is any way to chat without email would be good). Thanks again.

I was on auto update release channel but had not been asked to update since 2012. Now 38.0.1. Freezes (need power down to restart) my W7 Pro after receiving last incoming email. Disabling add-on's did not help. I removed calendar. Am able to send fine. Any thoughts? Thanks in advance (Note I will probably have to turn off and restart after receiving your reply so if there is any way to chat without email would be good). Thanks again.

Okulungisiwe ngu Wayne Mery

Isisombululo esikhethiwe

If it works in Windows safe mode, then the problem is some other software that is loaded during Windows boot. For examle antivirus software

Funda le mpendulo ngokuhambisana nalesi sihloko 👍 3

All Replies (4)

more options

So Calendar is causing your problem?

more options

Thanks very much for responding...

I don't think calendar was the problem as it continues after I removed it.. Still hanging with all addons removed. Works ok in W7 pro safemode.

Same thing in 3 diff user accounts. Probably something in W7 that was triggered by my update to Thunderbird to 38.0.1 from a version dated 2012.

more options

Isisombululo Esikhethiwe

If it works in Windows safe mode, then the problem is some other software that is loaded during Windows boot. For examle antivirus software

more options

I had the same problem, but found out the turning off hardware acceleration solves the problem (Thunderbird 38.1.0 on Windows 7 (64), Intel G41)

Uncheck "Use hardware acceleration when available" in Tools - Options - Advanced: General or set true for "gfx.direct2d.disabled" in configuration editor