Reading comments here about problems using Firefox is odd to me as I never run into them. I feel like people are taking about totally different browsers. I don't remember the last time I had page rendering issues or was asked to use a different browser.
I've been using Linux on my desktop for ten years and I definitely experience bugs and performance issues with Firefox from time to time that don't occur in Chrome. It's rare but common enough to keep Chrome around as a fallback.
A few: Developer tools are quite slow; Airline websites often break during checkout; JS games and video players sometimes stutter or use a lot of CPU
My favorite anecdote on this front: someone posted a comment on Lemmy, a fediverse alternative to Reddit, claiming Arch was "broken" and Linux users were delusional for thinking it was functional for the average person.
And when people ask them what they meant, they revealed that they used some package from the arch user repository that apparently required manual compiling for every update.
And instead of thinking that this wasn't the unusual behavior of a particular package, they insisted that this was the normal Linux packaging experience, which was why Linux as a whole was a terrible operating system.
A bunch of commenters chimed in emphasizing that the whole package distribution system in Linux is designed to among other things, handle dependencies and avoid manual compiling (though it's available as an option), and they were all dismissed as just being fanboy apologists.
Same. I mean, I'm sure there have been cases where I've switched to Chrome for certain things. I just got a custom viewfinder for my partner for Christmas, is showing a bunch of photos of the cruise that we went on. And they have an online editor for it, but the editor seemed to be glitching when using Firefox. So I moved to Chrome. Later I realized I was just misunderstanding and it actually just worked fine in Firefox.
And I'm able to access my bank, my credit cards, my utility bills, in Firefox without issue. So I'm not sure what people are talking about.
One thing I am familiar with though in the aftermath of gamergate was a bunch of motivated reasoning to complain about games and insist that they had design flaws or bugs, when really? The bugs weren't real but were kind of just a different way of saying We Don't Like This Game. And so reports of perceived bugs in some cases are as much a social phenomenon as they are a sincere representation of software functionality.
I don't want to say there's no bugs but for every one person's unsubstantiated anecdote, I seem to be able to find two people able to reproduce a functional version of the experience without issue. And just to zoom in on the bank login issue in particular, I use a credit union with an old decrepit HTTP site that was recently updated to a slightly less old and decrepit HTTP site. Plaid is unable to successfully log in, but the web interface works perfectly fine on Firefox mobile.
Most of the service sites I use are fine in Firefox running on Linux. The only thing I use that is problematic is the Microsoft 365 with Teams portal an employer uses. So I have Chromium just for that one.
Yes, I wonder if the rise of the Web Platform Tests have made browser behaviour much more consistent?
It happens so rarely, I don’t keep Chrome installed and have to download a new version of Ungoogled Chromium when I need to see if something only works in Chrome, which I can only remember doing about twice in the last year!
It's not page rendering issues, usually, since Firefox and Chrome pretty much support all the same things.
What you run into the most is the website saying, hey, it looks like you are not using a browser we have tested against, so we are not going to let you log in. Please come back when you have Chrome, edge, or Safari.
That happens quite often these days. Last week I was filling in a govt form (EU country), submit button didn't work in FF, so I had to resort to using Microsoft Chrome. On my company's training platform videos aren't rendered in FF. Another shitty corporate portal which shows my salary and holidays doesn't work in FF at all, completely. What else... A few smaller payment providers weren't working in FF over past two years. Ghost of the Skype before being finally killed only worked in Chrome clones. Stadia only worked in Chrome (yes, I used it and it was fine).
Also many sites show significant degradation in FF lately. Youtube works like shit in FF, once every 10 page opens it just gets stuck half way with part of the background loaded, like black with black empty frames on top. Or just empty page. No, it never finishes loading from that state, and neither it can reload on F5. But opening a new tab works fine and YT loads normally.
And to finish off this rant, FF has now started corrupting my open tabs after opening FF with saved session. This never happened since this feature was implemented and in 2025 has happened 3 times already. And in mozilla bugtracker all tickets about this are ignored for years now. Meanwhile they are developing some crappy bells and whistles, instead of fixing fundamental bugs.
If not for Chrome monopoly, I would consider switching browsers. Ladybird can't come soon enough. Mozilla has lost touch with reality.
Having switched to Firefox about 10 months ago, one thing I notice is every site I visit works but a lot of sites load way slower than Chrome. YouTube is a big one.
How much of that is Firefox rendering being worse vs artificial slowdowns by Google owned sites kind of doesn't matter in the end. Objectively it's a slower browsing experience but I solely use it for uBlock Origin.
I've been using Orion browser (WebKit-based with support for Chrome and Firefox extensions) for quite some time and haven't had this issue with YouTube, but I've definitely experienced the same with Firefox. If it's an issue of artificial slowdowns, you'd think they'd apply it to anything not running on Chrome's engine, which makes me think it's specifically Firefox's rendering causing this issue.
For me the biggest offender are usually Google products and sometimes the lazy-coded website written by incompetents and whose audience is the tech illiterate (i.e. some websites involving schools/teaching) that just tell you "use latest Chrome just to be sure, download here" to, well, just be sure.
Notable mentions for government websites that are like 10 years in the past and that are still on the "Supports Firefox" side because, well, they are just always late to everything.
Usually that's because of third party cookies the government websites love to use for authentication. FF and Safari by default blocks them but both can be disabled temporarily to use those websites. Chrome is more lax on them since ad networks love cross origin cookies as well.
While governments battle big tech on some issues, they are very much on the same side on others. They both want more tracking for example - the governments want to regulate it, and there is a battle for control of the data, but both want the data to be collected by someone.
I cannot remember the last time I came across one myself.