I want to remove a popup named The Browser Highlighter. it is frozen on my screen when Mozilla opens up with Google. i cannot even chat with you as it covers the screen where i have to input info

a popup named The Browser Highlighter appears when Mozilla is turned on. it is frozen and does not respond and will not disappear
== This happened ==
Every time Firefox opened
== when i updated the the latest version of firefox

Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
If you have many extensions then you can first enable half of the extensions to test which half has the problem.
Continue to divide the bad half that still has the issue until you find which one is causing it.

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