Stop Recurring "installation successful" Tab in Firefox

Some Users have reported seeing a recurring new tab stating that installation of ABP is successful in Firefox. This is a known issue , and we are working with the developers at Mozilla to correct this. In the meantime, users have found success by removing Adblock Plus and reinstalling via https://adblockplus.org. If a reinstall does not correct this issue; try creating a new Firefox profile.

You can create a new Firefox profile directly from the browser using the steps below

• Type about:profiles into the browser URL search bar
• On the page, click Create a New Profile button
• Read the introduction, and click Next
• Enter a profile name for your new Profile. Use a profile name that is descriptive, such as your personal name. This name is not exposed to the Internet. Optionally, to change where the profile will be stored on your computer, click Choose Folder...
• To create the new profile, click Finish.

For more details on managing profiles in Firefox refer to this support article https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Multiple_profiles