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A Constant Contact Software Anomaly

I recommend Constant Contact to my clients for creating and mailing out electronic newsletters.  I edit four newsletters,  and another couple of clients write and send out their newsletters themselves.

Yesterday (June 4) Constant Contact updated their system with code that is suddenly incompatible with Firefox browsers running the AdBlock Plus extension.  (Or, possibly, AdBlock Plus updated its logic rules.)

The symptom:

I logged into one Constant Contact account and searched for a user contact.  The search returned no matches.  I knew the contact was good, so I reentered the contact information and re-searched.  This time, the contact came back.  When I clicked on the link for the contact’s “Bounce History” I was dumped to a logon screen.  I could re-login and repeat the process over and over, but I could never get the bounce  information I was looking for.

I later found a problem with logging into Constant Contact and then clicking on “My account”.  Instead of seeing subscription information, I received a “unknown error” message.

The trauma:

Constant Contact tech support and I spend a lot of time on the phone together.  The problem occurred on all of my different machines using Firefox, but not when I used Internet Explorer.  The problem did not occur on Constant Contact’s tech’s machine when she tried using Firefox.  I was later told that Constant Contact was getting a number of calls from other Firefox users, but they could not reproduce the problem themselves.

The Work-Around:

Click on the down-arrow to the right of the Adblock Plus logo. Click on “Preferences” and then on the “Add Filter” tab. Add these three exceptions:

  1. @@||^$document
  2. @@||^$document
  3. @@||^$document

These lines keep Adblock from interfering with the information contained in the Constant Contact pages.

Through trial and error, I discovered that green listing the Constant Contact URLs (by clicking on the Adblock option to “Disable” ad blocking) “fixed” the problem I was having.  This disabling produced the exception lines I posted above.

I called Constant Contact back and told them what I discovered — the tech I was thankful. Now, of course, Constant Contact may take my information and change their latest update so as not to run afoul of the Adblock add-on. Or, they may have their  users disable Adblock checking.  Either way will keep me happy with Constant Contact!

By |2010-06-05T12:46:01+00:00June 5th, 2010|Product Recommendations, Tips and Resources|2 Comments

About the Author:

San Francisco Internet Marketer and web designer gets you on the Internet in a cost-effective, responsible way.


  1. jofo January 31, 2011 at 9:41 am - Reply

    Thanks so much for this post. I’ve used CC and FF for years, with no issues, then suddenly a couple of months ago it quit working right. I tried deleting cookies, etc, all the usual stuff, and still no dice. Worked fine in IE. Your solution seems to work great. (Even disabling ABP to use CC would be fine too, but not having to do so is even better!) Thanks again!!

  2. Ozdachs April 26, 2014 at 12:48 pm - Reply

    I see that people are still hitting this post in their searches.

    Unfortunately, the information in it is out of date. In my opinion, Constant Contact no longer provides a recommendable product. Their recent updates have made adding contacts and editing newsletters way more difficult than before their software engineers ran amok.

    I haven’t switched my clients from Constant Contact yet. I keep hoping that someone in the company will wake up and realize they’re off course. But unless Constant Contact resolves its user-unfriendliness, soon, when I have the time, I’ll research alternatives and pick one.

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