We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

1. On the keyboard, press [Windows] The image "Windows key" does not exist. + [R]. This should bring up a Run window that contains a text field.
2. In that text field, type %APPDATA% and press Enter. An explorer window should open.
3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
5. Open the most recent 5 files with a text editor and copy the IDs.
6. Paste each ID with bp- into the reply window on the forums.

Thanks in advance!

You can find more information and troubleshooting steps in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

bp-ad83670c-016a-44b8-b0e4-553f02151016 bp-cca84c02-a4fa-41c9-8bf4-270972151016 bp-ec149f04-0990-4d44-96cd-743bb2151016 bp-df074141-443e-4c20-8e51-e9f1c2151016 bp-7f8daef7-2d9b-4d3b-b348-c60602151016

thanks for yor comments herewith my last 5 crash reports

All those crashes happened on 10-16, six days ago.

Two dll's brought about those crashes. mbae.dll - which is probably a MalwareBytes dll file. eoppmonitor.dll - 'owner' unknown and a search didn't turn up the likely perpetrator

I don't think those are related to your current issue.

Routine troubleshooting procedure to get started with. Please try the Firefox Safe Mode to see if the problem goes away. Firefox SafeMode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).

If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:

• Click the menu button , click Help and select Restart with Add-ons Disabled.

If Firefox is not running, you can start Firefox in Safe Mode as follows:

• On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
• On Mac: Hold the option key while starting Firefox.
• On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
  (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)

When the Firefox Safe Mode window appears, select "Start in Safe Mode".

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.

To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help others with the same problem.

sorry I made a mistake I did not send the right report. here are the right ones: bp-fd1cc88e-fb86-459b-9cc8-fb7712151022 bp-388667e3-cd86-469c-9793-974cf2151022 bp-ea83c4b4-5569-4f10-8f64-cd6792151022 bp-6f54a414-02d7-436c-a5df-c967e2151022 bp-255cce8a-15d0-4076-b110-e8dc42151022 Concerning safe mode as I mentionned I tried it without succès. I am really sure that the problem came with eset smart security 9

Finally I found the origin of this problem: It came from Malwarebytes anti exploit. So I uninstall it and the probem has gone. Thanks for the indication about malwarebytes (In fact I also install eset ss9 the 16th with the same problems and then I made a restauration. To day I tried again to install eset ss9 and i Faced the same thing. So even if the crash report where not the last ones your comments gave me a good indication.