Browser extensions can add useful features, but they can also have powerful access to what you do online.
Some extensions can read web pages, change website content, or access information entered into forms.
A trusted extension can later be sold to a different company or become compromised.
Businesses should limit extensions to approved tools and remove those that are no longer needed.
Employees should be especially cautious with extensions that promise free coupons, automatic downloads, search enhancements, or other features unrelated to work.
Keeping the browser itself updated is also important.
A simple rule is to treat browser extensions like installed software. If the company would not allow an unknown program on the computer, it should not automatically allow an unknown extension inside the browser.