Some problems occurs when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

• Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
• Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

Do you have nvidia's network access manager or forceware network manager software installed? Disable / remove it.

Well, I followed all your stages and it doesn't work, sorry. Thanks!

I don't know the details of how Windows runs on MacOS X. That could be a factor.

One reason for recent crashes on Windows is a problem with the Nvidia/ForceWare Network Access Manager. For example: Firefox still not working after uninstall and reinstall. IE works.

What was the last version of Firefox that worked normally?

OK, so I did a crash report successfully since my Firefox crash and not working.

I'll post the last 5 crash reports with the last one on top, so someone can tell me what's wrong and hopefully makes me able to use it again.

Here it goes :

Crash ID: bp-7f23b753-4e6e-49df-a0e0-6155a2151227 Crash ID: bp-8044cb08-7a4b-429c-ae13-326642151219 Crash ID: bp-f229a32c-04e3-4509-9e84-d1d322151223 Crash ID: bp-f51dde68-f82f-4bd5-a46f-aff5b2151203 Crash ID: bp-47a214ec-82aa-4bfe-ab35-9c3662151224

Thanks for guidelines & help!

And A Good Year to you :)

Thank you for the crash reports. The most recent, processed Dec. 27th, doesn't look familiar to me. When I click the "More Reports" link it doesn't show anyone else reporting this exact same crash during the past 28 days. It could be specific to your configuration, but I'm not able to figure it out (I am not an engineer).

The next two, from Dec. 23rd and 24th, were shutdown crashes. Firefox logs these if shutdown was not completed within the expected time. Do you recall closing Firefox intentionally and then getting the crash reporter dialog, or did Firefox close itself?

In case the new crashes are caused by corrupted program files, could you... and please adapt to your Windows-on-Mac configuration as needed:

Clean Reinstall

We use this name, but it's not about removing your settings, it's about making sure the program files are clean (no inconsistent or alien code files). As described below, this process does not disturb your existing settings. Do NOT uninstall Firefox, that's not needed.

(A) Download a fresh installer for Firefox 43.0.3 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.)

(B) Exit out of Firefox (if applicable).

(C) Rename the program folder as follows:

(64-bit Windows folder names)

C:\Program Files (x86)\Mozilla Firefox

to

C:\Program Files (x86)\OldFirefox

(32-bit Windows folder names)

C:\Program Files\Mozilla Firefox

to

C:\Program Files\OldFirefox

(D) Run the installer you downloaded in step (A). It should automatically connect to your existing settings.

Does a cleanly reinstalled Firefox start up normally??

Note: Some plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders:

• \OldFirefox\Plugins
• \OldFirefox\browser\plugins

Actually, you mentioned doing a clean reinstall in your original question. If Firefox 43.0.3 won't run, try installing 43.0.2 from here (click into the folder for your preferred language):

http://archive.mozilla.org/pub/firefox/releases/43.0.2/win32/

Product Firefox Version 43.0.2 Build ID 20151221130713 Release Channel release OS Windows NT OS Version 10.0.10586 ++++++++++++++++++++++++++++++++ bp-7f23b753-4e6e-49df-a0e0-6155a2151227

Signature RtlpWaitOnAddressRemoveWaitBlock ++++++++++++++++++++++++++++++++ bp-8044cb08-7a4b-429c-ae13-326642151219

Signature _dwrite_draw_glyphs_to_gdi_surface_gdi

LavasoftTcpService.dll = Lavasoft Limited

Nvwgf2um.dll = NVIDIA Compatible D3D10 Driver = NVIDIA Corporation

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

icudt55.dll = International Components for Unicode

This is for Sumo's Related Bugs 726206 NEW --- Firefox crash @ _dwrite_draw_glyphs_to_gdi_surface_gdi while printing +++++++++++++++++++++++++++++++++++++++++ bp-f229a32c-04e3-4509-9e84-d1d322151223

Product Firefox Version 43.0.1

Signature shutdownhang

LavasoftTcpService.dll = Lavasoft Limited

Nvwgf2um.dll = NVIDIA Compatible D3D10 Driver = NVIDIA Corporation

icudt55.dll = International Components for Unicode

This is for Sumo's Related Bugs 1225153 NEW --- crash in shutdownhang | WaitForSingleObjectEx | WaitForSingleObject | PR_Wait | nsThread::ProcessNextEvent | NS_ProcessNextEvent | mozilla::SharedThreadPool::SpinUntilEmpty +++++++++++++++++++++++++++++++++++++++++++++++ bp-f51dde68-f82f-4bd5-a46f-aff5b2151203

Product Firefox Version 42.0

Signature PR_EnterMonitor

System Memory Use Percentage 75

LavasoftTcpService.dll = Lavasoft Limited

Nvwgf2um.dll = NVIDIA Compatible D3D10 Driver = NVIDIA Corporation

icudt55.dll = International Components for Unicode

msmpeg2vdec.dll = Microsoft DTV-DVD Video Decoder

Do you have nvidia's network access manager or forceware network manager software installed? Disable / remove it. https://support.mozilla.org/en-US/kb/connectivity-crashing-firefox-43-update

Perform a System File Check to fix corrupted system files Win 7, 8, 10, Vista: https://support.microsoft.com/en-us/kb/929833

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

It Finally Worked!

I did the scan, but it said that anything was alright.

So I checked and realized that my Firefox was 43.0.2 and not the latest 43.0.3.

Which made me do the "OldFirefox" renaming of my Mozilla Firefox, before as a measure of safety.

I then dld and run and install of y 43.0.3 Firefox file, and finally I started it in safe mode to be sure, it finally opened, and after it opened normally still...

Thanks everyone, hope it'll not happen again! :)

That was very good work. Well Done. Please flag your last post as Solved Problem so others will know.

Ok Solved Problems

Sorry I do not find the option anywhere?