Sorry about the crashing, but I can't resist joking that if you want to get some work done, don't go to Facebook.

These reports do not seem to point to a single clear cause of the problem.

I'm not aware of any issues with the current version of Dashlane.

Could you try to minimize plugins? Here's what I mean -- open the Add-ons page using either:

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

In the left column, click Plugins. On the right side, set all plugins you can live without for 24 hours to "Never Activate". I suspect that would be everything except Shockwave Flash and maybe Adobe Acrobat. You can set those to "Ask to Activate".

With that setting when you visit a site that wants to use Flash or Acrobat, you should see a notification icon in the address bar and one of the following: a link in a black rectangle in the page or an infobar sliding down between the toolbar area and the page.

If you don't need the plugin, you can just ignore the notification.

Any improvement?

Thank you so much for your reply! Ha, ha, yes, it would be better not to go to Facebook but my employer has a page and I do have to visit occasionally. But that was just a random choice on my part when I selected a URL to visit.

I think there may be a hardware problem with the computer, too. It's a Dell and I've had a couple of instances recently where I turned it on and got the DOS-looking screen saying it was running a check because there were errors when starting up.

The IT manager (who also happens to be my husband) suggested that I run a complete disk scan during lunch that day. So I did that (the Windows error-checking scan on the entire C: drive), which took more than two hours. Firefox has been more stable since I ran the scan. Then I saw your reply but held off from acting on your suggestions because it wasn't crashing.

[Today, it's Thunderbird that is now repeatedly crashing. (At least four times so far today.) I disabled the one add-on that was installed in Thunderbird but it didn't help.]

Anyway, back to Firefox: I looked at the list of Plug-Ins. OMG, there are a ton of them. All except four are set to "Ask to Activate."

The four that are set to "Always Activate" are:

• Microsoft Office 2013 15.0.4703.1000
• OpenH264 Video Codec provided by Cisco Systems, Inc. 1.4
• Primetime Content Decriyption Module provided by Adobe Systems, Incorporated 11
• Shockwave Flash 18.0.0.194

The rest that are set to "Ask to Activate" are:

• Adobe Acrobat 15.7.20033.2203
• Adobe Acrobat 11.0.11.18
• AdobeAAMDetect 3.0.0.0
• AdobeExManDetect 1.1.0.0
• Citrix Online Web Deployment Plugin 1.0.0.104 1.0.0.104
• Google Update 1.3.27.5
• Intel Identity Protection Technology 3.5.29.0
• Java Deployment Toolkit 8.0.450.15 11.45.2.15
• Java™ Platform SE 8 U45 11.45.2.15
• McAfee SecurityCenter 14.0.1029.0
• Microsoft Office 2013 15.0.4514.1000
• Photo Gallery 16.4.3505.912
• Picasa 3.0.0.0
• Silverlight Plug0-In 5.1.40416.0
• Start Meeting Launcher 1.0.1.0

So I will go through and set as many as possible as you suggested above, and see what happens. Thank you so much and I'll provide an update!

[UPDATE: Firefox just crashed again when I was typing this reply.]

I hope that helps. These two --

kugrad said

• OpenH264 Video Codec provided by Cisco Systems, Inc. 1.4
• Primetime Content Decriyption Module provided by Adobe Systems, Incorporated 11