I like the idea of not concentrating yet more power with Google, but, on OpenBSD, I use Iridium (Chrome derivative), so I see these benefits, and am wondering what Firefox would add for me, privacy- and security-wise:
1) Iridium doesn't send info to Google like Chrome does (or that is the idea);
2) It is easier (last I checked) than with Firefox to leave some config tabs open so I can quickly turn on/off javascript, images, and/or cookies for those sites where I need them (by exception list or temporary exception, and easy to manage it without a mouse once the tab is open; separately, I do change the search engine also, and create search keywords), and
3) OpenBSD adds pledge/unveil system calls from the browser, to prevent it from reading/writing files where it should not (plus I browse under a different user than I do other things with high confidence there will not be a privilege escalation; also they say the pledge/unveil support is easier to implement in Chrome/Iridium than in Firefox because of the cleaner separations of concerns in the code organization (my wording; though they have probably also put pledge/unveil in FF also for all I know),
4) Maybe the security of Chrome/Iridium benefits from Google's bug bounties, more than what Firefox has done (ie, the security track record of each, frequency of major holes over, say, the last 1-3 years). I don't really know but I'm glad they try.
Given those things, what are the remaining biggest reasons I might prefer Firefox? (I am aware of OBSD removing DNS-over-HTTP from Firefox, indicating that is a choice that should be made by the user at the system level instead).
1) Iridium doesn't send info to Google like Chrome does (or that is the idea);
2) It is easier (last I checked) than with Firefox to leave some config tabs open so I can quickly turn on/off javascript, images, and/or cookies for those sites where I need them (by exception list or temporary exception, and easy to manage it without a mouse once the tab is open; separately, I do change the search engine also, and create search keywords), and
3) OpenBSD adds pledge/unveil system calls from the browser, to prevent it from reading/writing files where it should not (plus I browse under a different user than I do other things with high confidence there will not be a privilege escalation; also they say the pledge/unveil support is easier to implement in Chrome/Iridium than in Firefox because of the cleaner separations of concerns in the code organization (my wording; though they have probably also put pledge/unveil in FF also for all I know),
4) Maybe the security of Chrome/Iridium benefits from Google's bug bounties, more than what Firefox has done (ie, the security track record of each, frequency of major holes over, say, the last 1-3 years). I don't really know but I'm glad they try.
Given those things, what are the remaining biggest reasons I might prefer Firefox? (I am aware of OBSD removing DNS-over-HTTP from Firefox, indicating that is a choice that should be made by the user at the system level instead).