If the OP’s forum profile is correct, they meant SketchUp 2017 Make (which was free of charge), not the browser-based SketchUp Free. Many extensions are backward compatible with Make, though there is no guarantee.
I might not understand what you mean by “draw brick shapes”, but if I guess correctly, there is a very efficient way that does not need any extension: use the array copy function of the Move tool. Draw just one rectangle representing a brick. Use the move tool to copy it to the adjacent location. Then type (for example) 10* to repeat the copy a total of 10 times. If you want a typical running bond, select the first row, copy it down below and shift it half a brick to the side for the bond. Then you can select both rows and use the Move array copy on them together to generate the rest of the wall. If the wall length or shape doesn’t exactly match the brick size, you will need to do some trimming at the ends to get rid of extra. The whole process should take a fraction of a minute.
To help achieve your goals, some time spent at the SketchUp Campus and at the SketchUp - YouTube channel will be very worthwhile. Both sites are from the SketchUp team. On the YouTube channel, pay attention to the Square One Series. It covers the basics for each tool.