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Mozilla Firefox (known simply as Firefox) is a free and open source web browser descended from the Mozilla Application Suite. Firefox is highly extensible, with thousands of third-party add-ons available.
Firefox version 60+ (Quantum) is presently faster than Google Chrome and use less memory than Chrome. Compare to previous versions of Firefox, the Quantum version is twice as fast, promote parallelism, and has more intuitive user interface.
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Mozilla Firefox is also a platform with 1326 apps listed on AlternativeTo. Browse all 1326 apps for Mozilla Firefox.
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It's fast, simple and it's more lightweight than chrome and chromium. It doesn't insist on features I don't want, like some other browsers :/ Plus, Its size is a little smaller than other competing...See why people like Mozilla Firefox 😍 See why people do not like Mozilla Firefox 😡 Post your review
A great browser that's lost it's way.
As of 8/6/17 Firefox has begun to collect user data in an attempt to collaborate with Online News Association (A VERY partisan organization,) in an attempt to collect data on "fake news" websites and prevent users from seeing them. There are also rumors that they have teamed up with Piere Omidyar and are providing the information to help with his "fake news" censoring agenda. Mozilla, however, has yet to comment on the supposed relationship as of 10/9/17.
[Edited by ryngak, October 10]
"health" information is enabled by default. This is the opposite of user respect: it should be opt-in.
Mozilla continues to embrace protocols and systems that benefit third party ad networks which whore users' privacy for profit.
Find a modified, open source, firefox that has the evil and cancer removed like cyberfox or even waterfox.
Mozilla is only a stones throw away from being as evil as chrome: mozilla is phasing out XUL.
Mozilla's decisions will lower customizability/popularity
Firefox 57 will support only addons written via the WebExtensions API, which will mean that a great deal of well-loved Firefox functionality will disappear. This includes, e.g. Omnisidebar and Keefox. The community are furious (see here, here and here).
Still the most private for general browsing
Despite this, Firefox the best browser for customizability and privacy. It is the only browser able to give the user a huge range of options on everything from WebGL to WebRTC, changing how many closed tabs are remembered/can be re-opened, whether websites can ask for information about copy-pasting, battery status... If you don't know about this, you'll be surprised.
I recommend following the privacy guidelines set out for configuring Firefox on privacytools.io.
Firefox is open source and remains the best option for general online privacy, short of using Tor Browser (which is based on Firefox, btw.)
The main reason for many, if not most, people to use Firefox over other browsers such as Chrome or the new Opera, is customisation. No other browser comes close in the diversity and power of its extensions ecosystem, and it's really why I personally still use it as my main browser. While a number of developers do their best, Chrome's selection of extensions is, to put it bluntly, laughable. The average quality is terrible, many developers won't even try because they know already how ridiculously limited the possibilities are that Google gives developers.
Sadly, over the past few years, starting at around the time of Firefox's rapid release cycle, most extensions I installed were to restore some functionality that was removed. But thanks to the powerful possibilities given to extensions a good workaround could usually be found. For the benefit of anyone who might be interested, here is my short list of Firefox extensions that I find absolutely essential.
Category 1 consists of 4 extensions which, in my humble opinion, are essential to turn Firefox into a usable browser in the first place. To be frank, I think any browser should just come with this functionality by default. Note that this is not a criticism against Firefox per se – no other major browser offers these things, at least Firefox is one of the few (the only one?) that allow you to add them afterwards.
Category 2 is a more personal selection. These extensions I wouldn't consider essential, but using Firefox without them would just be endlessly frustrating to me. These are real time savers and effective grey hair preventers.
Many of these extensions are XUL-based, an API which will be completely removed from Firefox version 57, to be released this November. The only extension technology that will be left to Firefox add-on developers and users is WebExtensions, the same as used by Google's Chrome and other browsers.
While this has certain benefits regarding stability and portability, as anyone who has ever looked at Google's Chrome extension registry has to suspect, it is an extremely limited API compared to what Firefox used to offer with its legacy add-on systems. Most of the deeper interface customisations are not possible using WebExtensions APIs, which is why there are so few genuinely useful and interesting extensions for Chrome, especially compared to the rich ecosystem that was Firefox extensions. To their credit, Mozilla promises to extend their WebExtensions APIs beyond what Chrome offers, to allow for (hopefully much) more powerful add-ons. But the truth is that their current API support is terribly lacking, and months, if not years away from what it should have been before the old technology was scheduled to be disabled. This leaves Firefox users in the position of either having to do without a lot of the extensions they got used to, to stay on an old version of Firefox, or to hope and wait.
I'll update my comment with a list of replacements that are already WebExtensions compatible, which you can use in Firefox beyond version 56.
Firefox used to be a good browser, but the stuff Mozilla's been doing the past few years (data collection, removing features) has ruined the browser for me. I think Firefox as we knew it died in November 2017, when the WebExtensions apocalypse took place. Firefox quantum itself isn't the worst browser I've ever used, but dropping legacy extensions was a terrible move.
Now some users will tell you to use Waterfox instead since they think it doesn't spy on you, but the truth is, Waterfox pretends to care about your privacy and spies on you almost as much as Firefox. Vivaldi and Pale Moon both offer the same level of customization Firefox used to have (before the apocalypse), but both of those browsers have problems of their own (still better than Waterfox).
Since privacy issues are becoming more of a problem and companies like Mozilla and Google are controlling the internet as we know it, the web browser is dead to me. But since we have to use browsers, it's best to use one that's fully functional and independent from "evil" corporations. This leaves us with Otter and Pale Moon, and neither of them have the same functionality as Firefox-based and Chrome-based browsers.
As for Firefox, I suggest you run away from Mozilla before they do something else that will make all their users want to scream at them.
FF is everyones darling, yet I have a long list of unbearablities.
-FF used to have weave for syncing. My data on my server. This is no longer available. Don't be fooled: firefox sync server 1.5 does NOT substitute weave. Overall you need 7(!) servers (syncserver, oauth server, data server, fxa server etc.) of which none is fully documented. If you install this on your root server mozilla easily can load anything on to your machines.
-FF only allowes "signed" extensions claiming it is for security reasons. Yet the only places to get a certificate are US based and comply with US law. So surely no wikileaks Addons or other unwanted media.
-The code quality is not good. Yes, chrome is eating your RAM but FF destroys your HD. FFfanboys rage about this: https://www.servethehome.com/firefox-is-eating-your-ssd-here-is-how-to-fix-it/ stating that SSDs last so damn long these days you don't have to worry. If you pay attention to the article it clearly states that this is PER OPEN TAB. So the more tabs you use the more likely your SSD will die and your computer will slow down vastly with every new tab. While you can solve the chrome problem with more RAM -- mozilla offers NO solution but closing tabs. You can not run your FF profile folder on 2 HDs.
-The people behind Mozilla are going the exact same path most US based internet techs go: You start with "don't be evil" and like mozilla, sign really really bad contracts with the media in the USA, e.g. exfiltrating your empty startpage dials, implementing more DRM than necessary etc.
-The staff fiddles around with useless functions: Did you need Pocket in Firefox? Have you seen people use "Firefox Hello"? Me neither. Yet it wasted time and money to implement. And not to mention it is close to impossible to remove FF bloatware like Pocket.
There are alternatives and some are based on Firefox....starting with "Firefox Nightly" giving you back some of the freedom you had. Even better is PALE MOON ...it is essentially Firefox without the stupid ideas. And then there are so many new browsers like Vivaldi or Brave browser.
The only place I use Firefox is old computers with IE6. That's it.
Regarding the SSD issue, I'm not sure I fully understand. Why doesn't the article just tell people to move their profile folder off the SSD? I used Firefox's profile manager to move my profile to a HDD, and Firefox doesn't access my SSD at all anymore except for fonts and WinSxS. No writing is happening to the SSD. And anyone who doesn't run an HDD in parallel to their SSD, really shouldn't worry about Firefox writing a few dozen gigabytes a day – they'll have many much bigger perpetrators.
Mozilla Firefox uses too much CPU (or memory) on a computer. I do not recommend this browser for old computers.
I recommend not running Firefox on a potato.
It's fast, simple and it's more lightweight than chrome and chromium.
It doesn't insist on features I don't want, like some other browsers :/
Plus, Its size is a little smaller than other competing browsers.
It has all the features I need !
After a couple of years of Mozilla "improving" the browser by bloating it with various silly features, they finally made a huge step forwards and went to make Firefox fast and efficient.
Firefox got a huge modernisation of both backend and UI in version 57 (Quantum), which will be released in November. Firefox now takes advantage of multiple processor cores, prioritises tabs, and perceived performance is also improved. When you try Firefox Beta, you actually feel the new speed.
I really recommend everyone who had become fed up with Firefox and switched to Chrome to give the new version another chance.
I REALLY liked Firefox back in the day. It was easy to basically have it automatically run many tasks and what not while still keeping things low-impact on the system. Lately though I find that it's almost bloated with other nonsense that it's just hogging bandwith.
Third time trying to swap over to this for security reasons and for the third time I find myself looking for something else.
I cannot understand how this is considered the "de-facto" web browser when it's just such a broken mess. I run into sites like my bank (Chase, you know that little unknown site) that won't let me log in. Solution? Well according to Firefox users just use another browser for that obviously! Not at all inconvenient.
Speaking of inconvenient do you know what I love to do? Have to confirm what I want to do with every download I have regardless if I have the "Remember to do this next time" checkbox checked. Again, look into the solution and.. Too bad! It's the websites fault not ours! Are you kidding me?
I feel like I am constantly running into little annoyances that there are no ways to fix, little annoyances I don't run into with a browser like Chrome. They all add together to make a tedious experience where I just wish I was using something else. Not that I can recommend Chrome for it's privacy issues, but at least they build a browser that "just works" as they say.
Firefox is the best for online privacy data.
It is very secure. And there are many options in it. That is why i like it. And it should be for windows phone