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Crashing tabs (Signature EnterBaseline)

  • 7 replies
  • 4 have this problem
  • Last reply by cor-el

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I am having trouble with my browser crashing. After the tab crashed, I hit the refresh button and nothing happened. In the crash report, it says signature is EnterBaseline and the crash reason is "EXCEPTION_ILLEGAL_INSTRUCTION." This has me worried it may have been an attack or malicious code causing it.

If it will help someone solve this, I have the URL to the crash report I submitted, but I would like to make sure that it is safe to post the link, that it won't open me up to any security issue. Thank you.

Modified by crashhelp

All Replies (7)

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Posting the link is not a problem here.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most recent 7 - 10 crash reports, and copy them. Press the Reply button. Now go to the reply box and paste them in.


For more help on crash reports, see;

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I don't often submit crash reports, but these are the two I was referring to:

bp-36c75f41-1f50-473b-8057-1e2aa0170807 bp-6ccb8bd4-698a-4b9a-8b41-061450170807

And just making sure again, there's nothing in these reports that someone can use to cause a security problem with my computer, correct?

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No Personal Information Is Collected.

You should submit all crash reports. How else will Mozilla know there is a problem?

bp-36c75f41-1f50-473b-8057-1e2aa0170807 bp-6ccb8bd4-698a-4b9a-8b41-061450170807

Signature: EnterBaseline

Attention Sumo's there are 13 related bug reports

Let’s do a full clean re-install; Download Firefox For All languages And Systems {web link}

Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86)

Mac: Open the "Applications" folder.

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux;

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. ++++++++++++++++++++++++++++ Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder if there is one.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. If all goes well, remove the OLD folders when you are done. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again. This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia

Modified by FredMcD

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Is a full re-install really necessary?

This is the only time I've encountered this error, and I really just wanted to know if it was related to malicious code or something like that.

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I am not sure of the problem. Reinstalling will correct any Firefox program files.

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Under the Modules tab of each crash report, there is a dll highlighted in red with an icon to the left of it, could you tell me what that means?

For what it's worth, I had a few videos open in other tabs, wondering if that could be related.

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Modules marked like this way do not have symbols uploaded to the crash server, so it isn't possible to link a specific address in a crash report to a line in the source code of this module. This usually happens with security software and other third-party software or software that has recently updated.

EnterBaseline usually means that some (compiled) JavaScript is crashing and most of the time it is not possible to pinpoint such a crash.

When multi-process windows in Firefox is enabled then Firefox will use more memory and may be less responsive.

You can try to modify multi-process settings to see if this has effect.

  • set dom.ipc.processCount to 1 if it is currently set to a higher value (4)
  • disable multi-process windows in Firefox

You can disable multi-process windows in Firefox by setting these prefs to false on the about:config page.

  • browser.tabs.remote.autostart = false
  • browser.tabs.remote.autostart.2 = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.