I did a search for you.
[https://www.google.com/search?q=how+do+i+update+firefox+on+ubuntu&client=firefox-b-1-d&sca_esv=7031b7dbb708f9b4&sxsrf=ADLYWILO48r2sRX60F-c8NQFa_p9Bbto3w%3A1735395847031&ei=BwpwZ_7PAe2vptQPq8vW2Qw&oq=how+do+I+update+firefox+on+u&gs_lp=Egxnd3Mtd2l6LXNlcnAiHGhvdyBkbyBJIHVwZGF0ZSBmaXJlZm94IG9uIHUqAggAMgUQABiABDIGEAAYFhgeMgYQABgWGB4yBhAAGBYYHjIGEAAYFhgeMgYQABgWGB4yBhAAGBYYHjILEAAYgAQYhgMYigUyCxAAGIAEGIYDGIoFMgsQABiABBiGAxiKBUjCJ1DtBVjJF3ABeAGQAQCYAWOgAcMDqgEBNbgBA8gBAPgBAZgCBqAC2wPCAgoQABiwAxjWBBhHwgILEAAYgAQYkQIYigWYAwCIBgGQBgiSBwM0LjKgB-Ek&sclient=gws-wiz-serp how do i update firefox on ubuntu]