84,488,480 programs installed

Should I remove Mozilla Thunderbird?

What percent of users and experts removed it?
8% remove it92% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #15,696
United States Rank #16,384
Reach 0.0172%
Lifespan of installation (until removal)
< 38.58 days
1138.06 days >
Average installed length: 597.97 days


3.1.7 (zh-TW) 0.59%
3.1.7 (sv-SE) 1.77%
3.1.7 (sk) 0.59%
3.1.7 (ru) 2.65%
3.1.7 (pt-PT) 0.59%
3.1.7 (pt-BR) 1.18%
3.1.7 (pl) 2.65%
3.1.7 (nl) 2.06%
3.1.7 (nb-NO) 0.59%
3.1.7 (ja) 1.47%
3.1.7 (it) 5.01%
3.1.7 (hu) 0.29%
3.1.7 (fr) 11.21%
3.1.7 (fi) 0.59%
3.1.7 (es-ES) 0.88%
3.1.7 (es-AR) 0.88%
3.1.7 (en-US) 33.04%
3.1.7 (en-GB) 6.19%
3.1.7 (el) 1.47%
3.1.7 (de) 24.78%
3.1.7 (cs) 0.59%
3.1.7 (ca) 0.29%
3.1.7 (bg) 0.29%
3.1.7 (ar) 0.29%

Other programs by Mozilla

Mozilla Thunderbird 3.1.7

What is Mozilla Thunderbird?

Mozilla Thunderbird is a free, open source, cross-platform email, news and chat client developed by the Mozilla Foundation. The project strategy is modeled after Mozilla Firefox, a project aimed at creating a web browser. Thunderbird is an email, newsgroup, news feed and chat (XMPP, IRC, Twitter) client. Thunderbird provides enterprise and government-grade security features such as SSL/TLS connections to IMAP and SMTP servers. Extensions allow the addition of features through the installation of XPInstall modules via the add-ons website which also features an update functionality to update the extensions. Here's what's new in Thunderbird 1.5: Automated update to streamline product upgrades. Notification of an update is more prominent, and updates to Thunderbird may now be half a megabyte or smaller. Updating extensions has also improved. Sort address autocomplete results by how often you send e-mail to each recipient. Spell check as you type. Improvements to product usability including redesigned options interface, and SMTP server management.

About  (from Mozilla)

Thunderbird is a full-featured email, RSS and newsgroup client that makes emailing safer, faster and easier than ever before. More information about Thunderbird is available. Thunderbird replicates the new look and feel of Mozilla Firefox in an effort to provide a similar user experience across all Mozilla software des...  Read more
  • Automatically starts with Windows

Program detailsProgram details

URL: www.mozillamessaging.com/en-GB
Installation folder: C:\Program Files\Mozilla Thunderbird
Uninstaller: C:\Program Files\Mozilla Thunderbird\uninstall\helper.exe
Estimated size: 32.76 MB

Program filesFiles installed by Mozilla Thunderbird 3.1.7

Program executable:thunderbird.exe
Signed by:Mozilla Messaging Inc.
Path:C:\Program Files\mozilla thunderbird\thunderbird.exe
Additional files:
  • mozcpp19.dll - Mozilla Custom C++ Runtime (User-Generated Microsoft (R) C/C++ Runtime Library)
  • freebl3.dll - Network Security Services (NSS freebl Library)
  • nspr4.dll - Netscape Portable Runtime (NSPR Library)
  • nss3.dll - NSS Base Library
  • nssckbi.dll - NSS Builtin Trusted Root CAs
  • nssdbm3.dll - Legacy Database Driver
  • nssutil3.dll - NSS Utility Library
  • plc4.dll - PLC Library
  • plds4.dll - PLDS Library
  • smime3.dll - NSS S/MIME Library
  • softokn3.dll - NSS PKCS #11 Library
  • ssl3.dll - NSS SSL Library
  • mozcrt19.dll - Mozilla Custom C Runtime
  • AccessibleMarshal.dll - Thunderbird
  • crashreporter.exe
  • MapiProxy.dll
  • mozMapi32.dll
  • updater.exe - Thunderbird Software Updater
  • WSEnable.exe - Thunderbird Windows Search Integration Handler
  • xpcom.dll
  • xpcom_core.dll
  • js3250.dll
  • nsldap32v60.dll
  • nsldappr32v60.dll
  • nsldif32v60.dll

Program behaviorsBehaviors exhibited

Scheduled Task
  • thunderbird.exe is scheduled as a task with the class '{85D77B62-697A-436B-A8AF-5660B7725F6A}' (runs on registration).
Scheduled Task (Boot/Login)
  • thunderbird.exe is automatically launched at startup through a scheduled task named Mozilla Thunderbird.
Startup File (User Run)
  • thunderbird.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Thunderbird622' and executes as C:\Program Files\Mozilla Thunderbird\thunderbird.exe -mail.
Startup File (All Users Run)
  • thunderbird.exe is loaded in the all users (HKLM) registry as a startup file name 'Thunderbird' which loads as C:\Program Files\Mozilla Thunderbird\thunderbird.exe.
Windows Firewall Allowed Program
  • thunderbird.exe is added as a firewall exception for 'C:\Program Files\Mozilla Thunderbird\thunderbird.exe'.

Program resource utilizationResource utilization averages

Memory:154.34 MB
21.09 MB average
Total CPU:0.0006311284%
0.031193% average
Kernel CPU:0.00025530%
0.016088% average
User CPU:0.00037583%
0.015104% average
CPU cycles/sec:416,601
8,062,084 average
I/O reads/min:22.18 KB
435.61 KB average
I/O writes/min:7.41 KB
105.02 KB average

How do I remove Mozilla Thunderbird?

You can uninstall Mozilla Thunderbird from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Mozilla Thunderbird (3.1.7), click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Mozilla Thunderbird.

Win 7 (SP1) 70%
Win Server 2003 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 8%
Keep it 92%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 76.40%
Windows Vista 10.62%
Windows XP 9.44%
Windows 10 3.24%
Windows Server 2003 0.29%
Which OS releases does it run on?
Windows 7 Home Premium 48.52%
Windows 7 Professional 15.09%
Microsoft Windows XP 9.76%
Windows 7 Ultimate 8.88%
Windows Vista Home Premiu... 7.99%
Windows 10 Home 1.78%

Distribution by countryGeography

37.66% of installs come from the United States
Which countries install it?
  United States 37.66%
  Germany 20.45%
  France 6.73%
  United Kingdom 3.74%
  Italy 3.74%
  Australia 2.74%
  Canada 2.49%
  Spain 1.75%
  Poland 1.75%
  Sweden 1.50%
  Belgium 1.25%
  Netherlands 1.25%
  Japan 1.25%
  Austria 1.00%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 20.74%
Dell 19.15%
Acer 19.15%
ASUS 9.57%
Toshiba 5.85%
Medion 4.79%
Lenovo 3.72%
American Megatrends 3.19%
Samsung 3.19%
Intel 3.19%
Sahara 1.06%
Common models
HP Pavilion dv6 Notebook ... 3.62%
ASUSTeK K52F 2.90%
HP Pavilion dv7 Notebook ... 2.90%
ASUSTeK UL30A 2.17%
Dell Inspiron 1545 2.17%
MEDIONPC MS-7616 2.17%

About Mozilla

Mozilla is a free software community best known for producing the Firefox web browser.
Publisher URL: www.mozilla.org


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