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What is nspr4.dll?

Part of Netscape Portable Runtime by Mozilla Foundation

What is it?

NSPR Library is part of Mozilla Firefox, a free and open source web browser developed by the Mozilla Foundation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. Functions can be added through extensions, created by third-party developers.
Description of nspr4.dll from Mozilla Foundation
Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.
Download Boost and enjoy your PC. Speed up Netscape Portable Runtime and optimize your PC.

How is nspr4.dll loaded?

Process Module - nspr4.dll is loaded as a DLL (dynamic link library) module within the process plugin-container.exe (Firefox by Mozilla Corporation) via run-time dynamic linking.
Netscape Portable Runtime is loaded by:


What is the community is seeing?What is the community is doing?
About 0.1% of all Boost users have the nspr4.dll file.Of the 0.1% of nspr4.dll users, 28.0% have disabled it.
Typical file (disk image) location:
C:\Program Files\mozilla firefox\nspr4.dll

What else is related?

What Windows OS versions does this run on?

Windows XP Professional (5.1.2600.196608)

About Mozilla Foundation

Born from Netscape’s 1998 open sourcing of the code base behind its Netscape Communicator internet suite, Mozilla Firefox currently holds approximately 22.48% o More...
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File details

File name: nspr4.dll
Publisher: Mozilla Foundation (verified)
Name: Netscape Portable Runtime
Description: NSPR Library
Version: 4.8.9 Beta
Size: 198.96 KB
Original file name: nspr4.dll

Digital certificate

Certificate authority: Thawte
Effective date: 9/27/2010
Expiration date: 10/30/2011

Image hashes

MD5: 7e472227b3bd61985dede5db5c02e61a
SHA-1: 1300ff7e9bb95b97bcee6ce451694878678a5569
SHA-256: 530f06b00de8c84077964ff59afd5438ba53d25b5e935edb70ffcde58ae494d8

PE image details

File entropy: 6.47710
File packed: No
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