What is firefox.exe? Is firefox.exe spyware or a virus?

How to fix firefox.exe related problems?
1. Run Security Task Manager to check your firefox.exe process
2. Run Registry Booster to fix firefox.exe related errors
3. Run Spyware Doctor to remove persistent malware

Process name: Firefox or Firefox Helper
Product: Mozilla Firefox or Adobe SVG Viewer or UnInstall Envy24 Family Audio or GeoFusion, Inc. GeoPlayer or AWStats or Math Flight v or Home Cinema XL II or Deer Park Alpha or Firefox PC-WELT-Edition or DVD Solution or IDAutomation.com Code 39 Free or firefox.exe or IDAutomation.com Code 39 Font or UninstallIA or TaxACT or Acoustica Effects Pack or MSXML or Rhem2_DEMO or CINEMA 4D Modul 'Sketch and or Sibelius Scorch or Roll or Tor Control Panel or firefox.exe or Action Sats Learning English or Optool or MachFive or HorseTrak V or CINEMA 4D Modul Advanced Render or GameTap or CCV Patch 501a or Gran Paradiso or Bon Echo or AMVapp or IrfanView or Adobe Flash Player Plugin or Project or Adobe Flash Player ActiveX or FoxyTunes for Firefox or Panasonic Document Management
Company: Mozilla (www.mozilla.org) or Mozilla Corporation or Collapp
File: firefox.exe


If you want a detailed security rating about your firefox.exe (and all other running background processes) read the following user opinions, and download the free trial version of Security Task Manager.

Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk. If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection! Check it out!


Users Opinions

2508 users ask for this file. 6 users didn't rate it ("don't know"). 84 users rated it as not dangerous. 6 users rated it as not so dangerous. 11 users rated it as neutral. 3 users rated it as little bit dangerous. 14 users rated it as dangerous.


All comments about firefox.exe:
Eren This is a Browser! It isnt Dangerous. Sorry 4 my Bad Englisch :P
Great Browser. Safe alternative to IE. Recommend A+
KDE Best browser available :)  See also: Link
Tom Mozilla Firefox web browser
JimH This is THE browser.
Rupert A good SAFE web browser, I prefer it to Internet Explorer
Shio If I have -9 i'll give this rate. Firefox is THE webbrowser. It's safe and fast.
Kallbrandt Good browser. Patch it up though to avoid security holes.
Grungi The best browser out there. And by far the safest.
ist ein Browser von Mozila
This will cause compatibility problems if you are using IE at the same time.
supo The best Browser
reconfigures Mozilla Firefox - Best browser available!
Jeroen Vandezande FireFox is the best browser available  See also: Link
Ben! Alternative browser to Internet Explorer  See also: Link
Clarence A very safe browser stops popups dead in their tracks
TwoBears The BEST Browser, Safe and fast
Sztosz Very Good Browser
Tim Great Browser. Safe alternative to IE.  See also: Link
Pac as people said its a web browser, aweosme one at that  See also: Link
this is a greae browser with security!!!
bitfreeze Excellent browser, open source  See also: Link
glendor mozilla/secure web browser/very safe  See also: Link
TrAmPi des is der beste browser, nie im leben ein virus
Boyce A much more secure browser than IE  See also: Link
Nate Firefox much better than IE
stu i just got a virus which names itself firefox.exe it is not at all asscociated with the firefox web browser.
Marcel It's firefox, but it opens port 1244 for no reason, it's a client, not a server
Lard Lad A good browser.
Theo Guter Browser, sehr sicher
1 firefox browser  See also: Link
denial_land Excellent browser!  See also: Link
marc a good browser, BUT it should only run 1 process. I found a second process with the same name that is BAD. there should only be one with that name, if there's 2, u have a virus or something.
Alcides Firefox is a very good browser. Tab function to open in the same window and Ctrl + or - to increase / decrease text size is very useful.
herbsmokinfreak Dump Microsoft and get Firefox and Gmail Today!! So popular though it may be under attack. Keep security up to date!  See also: Link Link
Doody This is a web browser. It's more secure than most browsers (thats until it gets really popular!)  See also: Link
C.D. Random Mozilla Firefox - decent on security, but requires updates just like any other program.
SyndroM-666 exzellenter browser! besser als die Internet Explorer kacke... aber ich bin trotzdem gespannt auf die neue version von IE ... mal sehen  See also: Link
Justin It's Faster and " intelligent "
mausau2000 A brower better than IE
OG Shinji Best browser ever
steveanderic Check to see how many processes you have running using this name - seems that something has started masquerading as firefox.exe even when the genuine firefox isn't running. Firefox is still great - but someone's trying to spoil it for us!
Rocky It´s a Browser from Mozilla, this browser don´t Danger.
DJ Mozilla / Firefox browser, excellent, way safer than IE, doesn't work on many Microsoft corporate sites.  See also: Link
RuFy The best browser
Robert Ketron Mozzilas attempt at a safe web browser, possible reasons for having more then one in your processes is that the first one froze and you ran it again and so on.  See also: Link
ST1L3TT0 Der beste Browser weit und breit...  See also: Link
Simon I love the browser Firefox. But it seems like I've got a virus now called firefox.exe. I just can't find any startup for it in hijackthis. Anyone know where I can see the file path for it?
matcor like interbet explorer
Ian This browser rocks add the xtension stumble and wow  See also: Link
Paul Consumes alot of CPU as you add extensions (1.0.7)
devotee best browser
Karl 25% gefählrich, aber der IE nur 5%. Das ist doch totaler Quatsch. Wenn schon, dann umgekehrt.
Xavier Best browser ever, very secure, and works good with McAffe Virus Protection.
FIREFOX - Spread the word!
BEN AYALA Best Browser so far, make the change of your life ! Get Firefox !!!  See also: Link
asdf You can make it even faster. Find information over here  See also: Link Link
chris fantastic file browser, konqueror is faster :) but firefox is still excellent. dump microsoft all together and get linux and USE FIREFOX NOW!  See also: Link
BJaw Mozilla Firefox, a webbrowser that is userfriendly. As with all browsers they sometimes have security flaws, but the Mozilla team quickly provides patches for those.  See also: Link
Greg Excellent browser. It opens with a little delay but during its use you have absolutely no problem... no matter how many windows (or tabs) you open it doesn't crash.. while IE opens faster than firefox but if you're willing to open many windows then you're pushing your luck...
Lone Wolf It is a browser, but whenever I restarts my computer, or my explorer.exe process, a virus by the name of firefox.exe appears and really slows down my computer, altho I can turminate it thru Task Manager.
Moo! A browser- more secure than IE, but has exploits that didn't get fixed for almost two years now. Prone to eat your ram for breakfast and is the slowest out of the "big three"- Opera, FF, and IE7.
Viet Anh Very useful
Best Browser on the Planet  See also: Link
Kisara Firefox. Ew. Unsafe. Memory hog. Slow. Use Opera. 'Nuff said.  See also: Link
safest browser you may ever see...
Skyler Nathanson the best browser available! But...I got a virus named the same thing recently... now i can't open the real one!  See also: Link
Firefox is the only browser I use. I think the multiple process thing might be a small glitch that hopefully will be fixed in the future.
Filipp Mozila Firefox. This is one of the best browser!  See also: Link
tron firefox.exe running in my processes even tho firefox isnt being used... think this is a trojan? I cant remove it, and it is something to do with a file called ali.exe
Chrilloo Its a W32 Worm. Or i can be. If you havent installed the webbrowser, its a virus. I got the shit from a program called "Webspycam" . So i got 2 firefox processes. The normal one i can close, but the other comes back the whole time..
Firefox fan Firefox empowers you to browse faster, more safely and more efficiently than with any other browser  See also: Link
Dylnuge You have to be joking if you think it is dangerous. Its a browser
Jeltz Yay for firefox. the best browser!
Oscar I have a process with that name, I end it manually and it starts again by itself. It's different from the web browser. I don't know where it is to delete it.
PEGASUS2007 It is a copy of firefox.exe in memory, which start itself, without user(my) permission by dllhost.exe(??), and forcing my CPU to 100%! If you try to close it, it starts again and again. My firefox.exe(orginial Mozilla Browser) isnt in run or on any other startup, and i didnt start it by myself, spyware terminator dont recognize it as threat, neather NOD32 2.7, but based on my experience as an programmer, it's some kind of fake_name.exe service! Any explanation??
ang Best Browser Ever.
jj If you have two Firefox.exe running you probably have a trojan called Poisonivy. It's bad news. It can be used to tunnel into your system, keylog, copy files & change settings. Do yourself a favor, dump Norton & grab NOD32.  See also: Link Link
Anon Mozilla Firefox, safe but slower than IE or opera
dave anderson on startup there is a file named firefox.exe, about 5700k, when firefox is started there are 2 firefox.exe files, the second about 60000k, if the smaller is terminated, firefox works fine, otherwise the computer hangs
X-Ray.Ger Internetbrowser from Mozilla  See also: Link
bestshareware fans Firefox empowers you to browse faster, more safely and more efficiently than with any other browser.  See also: Link
jj does anyone know the name of the second firefox.exe virus or how to remove it?
some1 i have it too, it startsup alone and if left running for a while, the pc almost stops responding at all, have not figured how to remove it yet though, and people should help instead of spamming about how good firefox is
meow If update Mozilla Firefox, GREAT! I Also use Opera Latest version! I language Hungarian, I Understand(Not fully) In english. :-) Download Thunderbird now.  See also: Link
NJ Firefox.exe is the executable file for Firefox, which is the best browser ever
Todd c:\windows\system32\firefoc.exe wants ip 69.60.122.13;6667 I never installed firefox
Paul powers its the W32/Tibick-F worm if it runs at about 3.000k
Jeff One major flaw - Can't run in the background, always takes up huge amounts of memory.
Robert Fewer flaws than IE
Steve Savage Safe obviously, unless you are running 2 processes, one will be small. If thats the case you are infected with a keystroke capturing trojan horse.
Great Browser without the issues of IE
anonomous firefox is a great browser. safe, secure and if have siteadvisor (www.siteadvisor.ca). i found a funny add on which renames your tabs so only you know what is on those pages
Dave Best browser available. BOW DOWN TO THE FOX! (Who happens to be harmless).  See also: Link
wtf it keeps spiking to 50% cpu usage when ever I use it causeing it to freeze for like 10 seconds, in intervals of about 40 seconds or so... whats goin on here, my IE is doing the same, except it freezes while loading web pages instead.
Humuhumu it is just a browser,good browser :)
-.- This is a program now that is less safe that IE. IE has gotten better security now, and it has now more SSL protection than firefox.
Midnyte sometimes it takes up 99% CPU usage for seemingly no reason. there is only one process and it can be terminated without coming back on its own. perhaps it is a conflict with internet explorer but i need IE in order to do the windows updates. the windows updates refuse to work with firefox so it seems like i have to keep both. any feedback is appreciated at majikmoneyvoodoo@yahoo.com
Adi firefox browser is not dangerous but a worm named zasran can create a process "firefox.exe" which restarts ur computer periodically
Oh ye? So how come I have 14 firefox.exe processes still running although I just ended the application with winxp task manager? Even with normal close window those 14 firefox.exe still keep running oO
angela I would worry about it if I have never installed the browser and have firefox.exe running.
Justin It is a Browser! Not Dangerous!!!
File firefox.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in a subfolder of the "My Files" folder (usually C:\Program Files\Mozilla Firefox\). Known file sizes on Windows XP are 6637156 bytes (10% of all occurrence), 6631012 bytes, 7633008 bytes, 7190637 bytes, 7604331 bytes, 7166053 bytes, 7183469 bytes, 7620696 bytes, 6636644 bytes, 7177325 bytes, 7162979 bytes, 7191149 bytes, 6621794 bytes, 6637161 bytes, 7200365 bytes, 7172197 bytes, 7206509 bytes, 6627428 bytes, 7171685 bytes, 6631017 bytes, 6636649 bytes, 6626916 bytes, 6610944 bytes, 6578276
Peter Hidden as a Virus, Theirs a Process called "firefox.exe" that is a Backdoor. if u open up the original browser firefox.exe you can see it takes up way more memory than the original!  See also: Link
Nyar Firefox is the best browser! Not dangerous!
Desert Crystal Best web browser that is getting better.
if you have 1 firefox.exe whitout having started firefox u have a virus. wen u remove firefox.exe from its directory u get 100% Cpu on explorer so have no clue how too get rid of it.

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More process information

Is firefox.exe spyware or a virus, trojans, adware or worm? Is there a known firefox.exe error?


Other Processes

firefox.exe [all processes]