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From /some/ security perspectives, not all. Enough to actually ditch firefox for all websites? The convenience of only using one browser seems to me to be pretty limited and is clearly a security concern in itself as opposed to using multiple. (How many is optimal? - Well how many are there? How easy is it for you to use each of them - make the call that suits you given your assessment of the concern.)



I don't see the security issue with using the one browser which is least likely to let a webpage root you.


"root you" what does that mean in this context? Does it mean the exploit can read what you're typing in that browser? It can see your browser history? It actually has root on your machine and can and will do anything and everything? Does it mean less than any of that? All of these exploits are possible and none desirable.

What is your chance of getting an exploit that gives some remote entity administrator permissions against your will from say, your bank? If you have a browser that use say for your bank logins and nothing else I'd estimate the chance of you falling victim to an exploit and suffering loss has decreased.

Given a website: which browser is most likely to lead to you being exposed to an exploit. Answer will depend on the website.

If you fall victim to a cross site scripting security issue, the sites you visit in another browser are not vulnerable.

The cookies you accumulate containing information that you have probably not confirmed is all harmless are not available to a different browser if your browser has a problem.

"Least likely" is not a constant and is quite challenging to estimate accuratel as it depends on your browsing pattern which is not constant and the vagaries of exploits in the wild which are un-knowably not-constant. If the exploited security flaw you encounter is in browser A, browser B is the safer option. Using one browser exposes all of your internet activities to the exploit. Using multiple browsers exposes a subset.

You might get stuck with a mono-culture if everything else is a disaster, but choosing a mono-culture of your own volition is not great practise if your second and later options aren't dead losses. I don't think firefox has ever been a dead loss, if you do and can justify it to yourself, great.

If it is necessary to be more paranoid https://www.qubes-os.org/ is probably a reasonable option. As it is our operating systems, be they proprietary or open source, suck and pointing it out is not terribly controversial. Qubes is a reasonable response - is it a reasonable cost for each of us in time and hassle? Individual decisions are required for each of us to say.

One browser? No reason to be stuck with it, you can do better for basically zero hassle.




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