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.

Crash ID: bp-a6bfedbd-8365-49f2-8d44-1e51d1171015 Crash ID: bp-92e6e716-fc8d-41be-a4b9-ee78c1171014 Crash ID: bp-dda32b68-1070-43f9-9806-02f2a0171009 Crash ID: bp-12b0dcd5-bd4c-415f-9860-05a8e1171001 Crash ID: bp-db7747d7-8c49-4619-96d5-f6cb31170920 Crash ID: bp-997f81e4-10bb-44c8-bed9-fb99e1170918

that's all i got. most recent one last modified on 15/10/2017 but i got this problem just yesterday on 17/10/2017 thanks

bp-a6bfedbd-8365-49f2-8d44-1e51d1171015 Signature: js::TenuringTraversalFunctor<T>::operator()<T>

Date Processed 2017-10-15 14:21:22

Start your Computer in safe mode with network support. Then start Firefox. Try Safe websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

FredMcD said

bp-a6bfedbd-8365-49f2-8d44-1e51d1171015 Signature: js::TenuringTraversalFunctor<T>::operator()<T> Date Processed 2017-10-15 14:21:22

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Start your Computer in safe mode with network support. Then start Firefox. Try Safe websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

i think its ok now. after go to safe mode it can be opened again. now my firefox looks like normal but idk if later got same problem again lol thanks Seburo and FredMcD

If Firefox works with the Computer in Safe Mode, something on your system is causing the problem.

Try disabling your protection programs as a test.