Rich, there are some ways to be able to tell which browser you are on.
First, a good idea to know what the "browser" is. When you go on the internet, your computer uses a "program", and that program is all the stuff that is "around" the webpages you look at. So, the browser includes your scroll bars, and the stuff at the top such as those arrows for going back a page, the refresh button, and the box or boxes that show the website's address.
Second, we can narrow down what your browser is. You should know what brand of computer you have. If there is a picture of an apple on your computer, you'll have a certain set of browsers that are probably different than if there is no picture of an apple on your computer.
If there is no embossed apple on your computer, we can narrow it down some more.
When you turn on your computer to go on the internet, do you click an icon thing that has an e in the middle of it? If you do, your browser is one of the versions of "internet explorer"
If you click an icon that has a colorful fox with a fiery mein looking picture in it, then you are a firefox browser. Usually people who have firefox know it because most folks add it or have someone add it for them.
Did you have someone help you set your computer up? If so, how long ago? Those can help you narrow it down some because they come up with new versions every few years, especially internet explorer browsers.
Or, is the icon you click a colorful circle of green, red, and yellow, surrounding a blue circle in the middle? If so, that would be a google browser.
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But I am going to guess you have an internet explorer browser. The abbreviation for it is IE. So the next thing to narrow down is which version of IE do you have.
To do that, ask, when was your computer last set up by a person who did major work on it?
Or, when was the computer purchased new if it has never been worked on?
Knowing when it was set up or purchased will usually narrow it down to one of 2 versions of IE.
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There are other ways to know what browser you have. The ways I just said are only my own Neanderthal ways of thinking.