Browse free open source JavaScript Browsers and projects below. Use the toggles on the left to filter open source JavaScript Browsers by OS, license, language, programming language, and project status.

  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Start Free
  • Paessler: Easy to Use With Enterprise Power. Free Trial Icon
    Paessler: Easy to Use With Enterprise Power. Free Trial

    A low-code dashboard makes monitoring intuitive for any admin, while scripting and custom sensors give experts full control.

    You shouldn't have to choose between a monitoring tool that's easy to use and one that's powerful enough for a complex environment. PRTG's low-code interface lets any admin build dashboards, set alerts and monitor devices without scripting, while custom sensors and full API access are there when your team needs deeper control. One platform, no compromise. Download a free 30-day trial now.
    Get Free Download
  • 1

    Firefox + Group Policy Object

    An extension to push Firefox configuration settings using GPO

    This product allows to create and apply a custom/corporate configuration for Firefox using Active Directory Group Policy Objects. It's composed of: - An administrative template (admx format only for now) - A firefox extension After deployment of the administrative template, settings values can be defined through the GPMC console or the GPEDIT console. These settings are processed by the extension upon Firefox startup. [Home]
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Firefox GNOME theme

    Firefox GNOME theme

    A GNOME theme for Firefox

    A GNOME theme for Firefox. This theme follows lastest GNOME Adwaita style. Be aware that this theme might do things that are not supported by upstream Firefox. If you face an issue while using this theme, report it here first or test if it is reproducible in vanilla Firefox. If you are a software distribution maintainer, please do not ship these changes by default to your users unless you made it extremely clear that they are using a modified version of Firefox UI. This is a bunch of CSS code to make Firefox look closer to GNOME's native apps. The master branch of this repo supports the current Firefox stable release 105. Theme versions compatible with older Firefox releases are preserved as git tags. We also have the beta branch for fixes only applicable to the current Firefox beta version.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    This Firefox addon adds a Pi button and a Pi Day countdown to your browser. You can put these anywhere on your toolbars, just right click and select "Customize", then drag it into the toolbar.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    This Firefox extension integrates the FatRat download manager into the browser.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Host LLMs in Production With On-Demand GPUs Icon
    Host LLMs in Production With On-Demand GPUs

    NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

    Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.
    Start Free
  • 5
    Firescreen - Screenshots webpage

    Firescreen - Screenshots webpage

    Get in an immediate screenshots of your web pages for Firefox

    Get in an immediate screenshots of your web pages with this useful extension reserved for the famous Firefox browser. For installation of the addon you can click directly on the download button using your Firefox browser and authorize the addition of the extension. The project was realized with the support of the library: PDF API HTML5 - http://ulmdevice.altervista.org/pdfapihtml5 ========================== Opera add-on: http://opr.as/20Njeed Firefox add-on: http://mzl.la/23AD5P9
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    FitText.js

    FitText.js

    A jQuery plugin for inflating web type

    FitText makes font-sizes flexible. Use this plugin on your fluid or responsive layout to achieve scalable headlines that fill the width of a parent element. Oh, and don't you dare let us catch you using FitText on paragraph text. This is for gigantic display text only! Your text should now fluidly resize, by default: Font-size = 1/10th of the element's width. If your text is resizing poorly, you'll want to turn tweak up/down "The Compressor". It works a little like a guitar amp. The default is 1. This will hopefully give you a level of "control" that might not be pixel perfect, but resizes smoothly & nicely. FitText now allows you to specify two optional pixel values: minFontSize and maxFontSize. Great for situations when you want to preserve hierarchy. Run FitText before anything that hides the element you're trying to size (e.g. before Carousels, Scrollers, Accordions, Tabs, etc). Hiding an element's container removes its width. It can't resize without a width.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Small Firefox button that allow you share entire Flickr set to Livejournal account.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    FlyingFox

    FlyingFox

    An opinionated set of configurations for firefox

    An opinionated set of configurations for Firefox. Some of the code, namely urlbar and popups CSS are slightly edited versions of the ones from Material Fox. Takes up the least space, and expands when hovered. Permanently expanded. Can be toggled with a shortcut. ( ctrl+shift+a > TST > right top cogwheel > extension shortcuts) Supported extension icons are changed, and a mask(generated for custom color with webapp) is applied to unsupported ones to blend them better with rest of the theme. Switch window-controls to right. Along with vertical tabs, traditional horizontal tabs are also included.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A firefox extension that resolves an eXtensible Resource Identifier (XRI) and renders the eXtensible Resource Descriptor Set (XRDS) document in a human-friendly interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Start Free
  • 10
    FocusGeek

    FocusGeek

    Block distracting websites and stay focused, free

    Block the websites that eat your day. Block them all the time, on a schedule (like weekdays 9 to 5), or only while a focus timer runs. Blocked sites show a calm page with the time left, instead of the feed you were about to scroll. Everything stays on your computer. A free, open source browser extension for Chrome, Microsoft Edge, Brave, Opera, Vivaldi and Firefox, from TechyGeeksHome. No account, no tracking, nothing to pay. The files here are copied from the GitHub releases. Use the main ZIP for Chrome, Edge, Brave, Opera and Vivaldi (Load unpacked) and the -firefox ZIP for Firefox. Full install guide: https://techygeekshome.info/browser-extensions/focusgeek/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Footsteps

    Footsteps

    Footsteps montre en temps réel qui collecte vos données sur internet

    INSTALLATION Pour installer l'extension Chrome, extrayez l'archive où vous le souhaitez sur votre ordinateur, puis suivez l'étape 2 de ce guide: https://support.google.com/chrome/a/answer/2714278?hl=fr
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    The project is a collection of specialized classes in JavaScript for form related routines like user input validation. Main features are self-sufficiency, compactness and cross-browser support.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    This is an extension for Firefox. You can launch streaming videos from a xul page loaded in firefox. Just select the date and click on one of the available link (editable in a xml file) to see the video in your prefered video player.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    FoxBAT was made in an attempt to see if Naïve Bayesian filtering commonly used for spam filtering could be employed in the World Wide Web context. The application consists of a Firefox extension (.XPI package) and a Perl server script.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    A Firefox plugin to automagically backup forum postings.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16

    GBuster-inator

    Browser defense

    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    GC jQuery UI theme switcher

    GC jQuery UI theme switcher

    jQuery plugin which provides a jQuery UI dialog to change UI theme css

    Theme switcher tool for the jQuery UI CSS Framework. Change the css stylesheet using an jQuery UI dialogbox which you can call using a button or a link in your html page. Completely implemented in your webspace.
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    userscripts for GoalLineBlitz
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Bookmarklet and Firefox extension to enhance search results in Google Scholar, by adding links to an institutional proxy server and OpenURL resolver.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    GSMX ShoutBox Pop-up
    Rozszerzenie do Google Chrome, które pozwala na uczestniczenie w ShoutBoxie fora GSMX bez konieczności jego całkowitego włączania na zasadzie okienka pop-up
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Sistema de Gerênciamento para o TISS(Troca de Informações em Saúde Suplementar).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Controls developed with GWT have tightly coupled behavior with their presentation, this introduce some troubles when we need to apply new theme for UI. This library introduce painless way to decouple logic from views using plain HTML templates.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    A Firefox AddOn that gathers data and allows auto play for "Game! - The Witty Online RPG" at http://www.wittyrpg.com/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Linux terminal simulator through javascript. With its own filesystem implemented.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    GhostText

    GhostText

    Use your text editor to write in your browser

    Whenever you’re writing more than a little snippet of code anywhere on the web, activate GhostText to open your preferred text editor and enjoy your own development environment. GhostText is a browser extension that connects to your editor via its own extension. Install both extensions and, if necessary, start the GhostText server in the editor’s extension. Most editor extensions are authored by third parties. You can create more extensions for your favorite editor! Refer to the protocol document. Once you have installed both browser and editor extensions, you can activate GhostText in the current browser tab by clicking its icon in the toolbar or by using a keyboard shortcut. The editor needs to be launched first. In some editors you’ll need to run the Enable GhostText command to start the server. Refer to the documentation of each extension. Sublime Text doesn’t need this step.
    Downloads: 0 This Week
    Last Update:
    See Project