It is embarrassing that I used to spend more on hosting and AWS than on donating to OSS that I use every day(not a browser). I’ve dropped AWS, switched to free hosting, and instead donate a very small amount.
If you want your favourite tool to hang about I’d suggest donating if you can afford it. Even a small amount helps. I donate to my choice of OSS via https://sfconservancy.org/ but I believe github has launched a way to do it too.