Sorry for the confusion. Mozilla has used the term "chrome" to refer to the user interface part of the browser since before Firefox was called Firefox, and Google apparently thought that was a great idea...

Could you describe the circumstances where you get these messages and what files they refer to?

One reason for scripts running slowly on many sites is the Flash plugin's protected mode feature. That feature has security benefits, but seems to have compatibility issues on some systems. My own experience was in this thread long ago: Flash hangs Firefox (eventually get script continue/stop dialog).

You can disable the protected mode feature by creating or editing a settings file. The following pages/posts provide different approaches for that:

• Adobe support article under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

• Manual steps: https://support.mozilla.org/questions/968190?page=5#answer-509209

• Batch file to automate the manual steps: https://support.mozilla.org/questions/982093#answer-518078

Flash needs to completely unload from memory (exiting and starting Firefox up again might help) before this takes effect.

Any improvement?

See also;

• http://en.wikipedia.org/wiki/User_interface_chrome

I wish I could have been more specific in the original post, but I didn't get the error message copied down before I restarted the browser.

I'm sure it will happen again and, when it does, I'll write down the entire error message. I also installed the error tracking plugin for Firefox - if I can remember how to make it record the error, I'll do that as well.

• NOW* I find out that Firefox called the UI "chrome" before Google did... I hope I didn't really screw things up by going through and editing out all the references to Chrome. (I'd think that Firefox would have corrected that error, or alerted me to reinstall the latest version to make those corrections.) Maybe I need to do that - uninstall Firefox completely and reinstall again... I hope it will save my bookmarks and such first.

I'll try some of the resolutions posted above as well... Maybe by doing so, I can head off problems before they occur.

Thanks!

You can delete the prefs.js file to reset all prefs to the default value.

You can use this button to go to the currently used Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)

Windows hides some file extensions by default. Among them are .html and .ini and .js and .txt, so you may only see file name without file extension. You can see the real file type (file extension) in the properties of the file via the right-click context menu in Windows Explorer.

OK, just had another error pop up. It read as follows:

A script on this page may be busy, or it may have stopped responding. You can stop the script now, open the script in the debugger, or let the script continue.

Script: chrome://browser/content/browser.js:17015

Continue Debug Script Stop Script

The browser was sitting idle on a webpage. The screenshot is attached.

I have Troubleshooter 1.1a loaded, but I don't know how to capture data from an event like this to be able to upload/report here.

The Troubleshooter add-on gathers system information but doesn't capture script error or crash data.

Once the page has finished loading, and assuming it has no reason to update or refresh itself, it shouldn't generate a script error like that. I wonder whether there's a problem with one of your extensions that runs in the background monitoring/modifying pages?

I suggest disabling these two to see whether that makes any difference:

• Advanced SystemCare Surfing Protection
• Skype Click to Call

You can do that on the Add-ons page. Either:

• Ctrl+Shift+a
• "3-bar" menu button (or Tools menu) > Add-ons

In the left column, click Extensions. Then you can find your enabled extensions listed on the right, with the disabled ones below on a gray background.

Often a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

Any change?

OK - I have disabled / uninstalled those recommended. (Advanced SystemCare uninstalled rather than disabled.)

I'll see how this goes. I forgot to mention that, after the last crash (last night) hard drive activity seemed to go through the roof - nearly constant read/write activity. I had to reboot the computer to get back to some normalcy.

So I'm thinking this goes a bit deeper than something just with Firefox....But I think things are starting to improve - or at least I hope so.

An update...

I have disabled Flash's protected mode, and I have disabled Advanced SystemCare's Surfing Protection and Skype Click-to-Call.

Things have improved, but I still have computer "lock-up" issues... At random (it seems) times, the browser will freeze and the hard drive seems to go into overdrive - reading and writing almost non-stop. Sometimes, it will clear itself after a few moments; other times I need to reboot the computer to recover full operation of the machine.

A lot of this started after I had and removed Google Chrome and "My Clean PC"... I wonder if there is anything remaining after the uninstall of those.

Well, groovy guys and gals, I think I finally have this issue licked...

I opened Resource Monitor within the Performance Tab of Windows Task Manager, and noticed that when these issues occurred - i.e., hard drive read/write uncontrollably - there were several Google services that were at the top of the activity list(s). SO - I went through the registry this afternoon and deleted ANY and ALL references to Google; after uninstalling the associated programs... whether it be Google Update, Google Earth, or Google Crash Handler. I then restarted the computer and opened the browser.

So far, browsing has been MUCH better (and faster) with no crash or java script errors... so far. I guess I'll see how it goes.