Download developer tools for firefox

Each night we build Firefox from the latest code in mozilla-central. These builds are for Firefox developers or those who want to try out the very latest cutting edge features while they're still under active development. This is a version of Firefox tailored for developers. Firefox Developer Edition has all the latest developer tools that have reached beta.

We also add some extra features for developers that are only available in this channel. It uses its own path and profile, so that you can run it alongside Release or Beta Firefox.

Every four weeks, we take the features that are stable enough, and create a new version of Firefox Beta. Firefox Beta builds are for Firefox enthusiasts to test what's destined to become the next released Firefox version.

After stabilizing for another four weeks in Beta, we're ready to ship the new features to hundreds of millions of users in a new release version of Firefox.

Firefox ESR is the long-term support edition of Firefox for desktop for use by organizations including schools, universities, businesses and others who need extended support for mass deployments. If you find yourself using multiple Firefox channels—or just multiple configurations—on a regular basis, you should read how to use multiple Firefox profiles by turning Firefox's Profile Manager and other profile management tools to your advantage.

Firefox Developer Tools is a set of web developer tools built into Firefox. This section contains detailed guides to all of the tools as well as information on how to debug Firefox for Android, how to extend DevTools, and how to debug the browser as a whole. If you have any feedback on DevTools or want to contribute to the project, you can join the DevTools community.

Note : If you are just getting started with web development and using developer tools, our learning docs will help you — see Getting started with the Web and What are browser developer tools? The ellipsis menu on the right-hand side of Developer Tools contains several commands that let you perform actions or change tool settings. View and edit page content and layout. Firefox Developer Edition , which is better known as Firefox Quantum , lets you try out the newest development tools and features that are coming to the main Firefox versions soon.

Now they use the Beta channel as their basis. The primary goal for this engine was a better performance, but there were improvements made to its privacy features too. For example, Quantum can block trackers on the internet and prevent your privacy from being compromised.

Related Downloads. Top Downloads. Comments and User Reviews. Here are the most common license types: Freeware Freeware programs can be downloaded used free of charge and without any time limitations. Open Source Open Source software is software with source code that anyone can inspect, modify or enhance. Free to Play This license is commonly used for video games and it allows users to download and play the game for free. Demo Demo programs have a limited functionality for free, but charge for an advanced set of features or for the removal of advertisements from the program's interfaces.

Trial Trial software allows the user to evaluate the software for a limited amount of time. Please ask a new question if you need help. I have not been able to locate it. Are you trying to use the Norton "Identity Vault" feature? Unfortunately, Symantec is still working on adding that back to its Norton toolbar for Firefox.

It seems to be taking much longer than expected. Find memory leaks and make your application zippy. Learn more about Memory Tools. Edit and manage all your CSS stylesheets in your browser. Learn more about Style Editor. Join the conversation. HTML Text. Sign Up Now We will only send you Mozilla-related information. Please check your inbox or your spam filter for an email from us. Get Mozilla VPN.

Firefox for Android Get the customizable mobile browser for Android smartphones. Firefox Focus Simply private mobile browsing. Privacy Promise Learn how Firefox treats your data with respect. Firefox Blog Read about new Firefox features and ways to stay safe online. Release Notes Get the details on the latest Firefox updates. Facebook Container Help prevent Facebook from collecting your data outside their site.

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