I am so sorry you're running into many road blocks when utilizing multiple browser's to create your campaigns.
Constant Contact is compatible with the most recent stable (non-beta) releases of these browsers:
You mentioned you have cleared browsing history already but would you mind checking these additional settings as well in your preferred browser?
Please respond back after you check these settings and let us know if there was any change.
Thank you for responding. I did as you suggested and cleared Browser Cookies in Chrome. I work primarily in the office. I'm now having trouble with the images. They don't show up in the library and I can't insert them into the newsletter. When I click the image button it doesn't do anything. I'll finish clearing out the Cookies in my other browser, but I've done that in Chrome and it didn't change anything.
Thank you for your response. I would be happy to help you trouble shoot further. It may be one of two issue. I am going to go over both issues and what to do.
You may have a plugin or extension in Google Chrome that is not letting the sight run properly. The best way to test this is to try using Constant Contact in Incognito Mode. Click on the 3 bars on the top right of the browser window and then click on New Incognito Window. In the new window, go to ConstantContact.com and log in. Try to upload or add your image. If you are able to work correctly you will need to go through your extension in Google Chrome and disable them one at a time to see which is causing the issue.
You may not have enough upload or download speed to run Constant Contact. The best way to check this is go to speedtest.net. Click on Began Test. You will ping your closes server. It will give you an upload and download speed. You want to be over 2mbps for both to use Constant Contact with out any issues.