# Firefox extension A Firefox extension is an add-on that extends browser functionality, built with WebExtensions APIs and web technologies such as HTML, CSS, and JavaScript. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## How to Monetize a Browser Extension with a Freemium Model DevFeed: [How to Monetize a Browser Extension with a Freemium Model]() Original publisher: [Read original article]() Author: Ayush Agarwal Published: 2026-03-28T00:00:00Z Content type: tutorial Language: en Sources: [Dodo Payments Blog]() Topics: [Extension](), [Browser Extension](), [Chrome extension](), [Firefox extension]() Tags: [chrome](), [chrome-extension](), [extension](), [firefox](), [how-to](), [license-keys](), [payments](), [subscription-billing]() ### AI overview A guide to monetizing browser extensions with a freemium model. It covers keeping core functionality free, gating advanced features and usage limits, validating license keys on a server, and using subscription billing and customer self-service portals. ### Source excerpt Build a profitable freemium browser extension. Implement free vs paid feature gating, license key activation, and subscription billing for Chrome and Firefox extensions. ## Why Switch to Firefox: Open Source, Ad Blocking, and Android Extensions DevFeed: [Why Switch to Firefox: Open Source, Ad Blocking, and Android Extensions]() Original publisher: [Read original article]() Author: Kaushik Gopal Published: 2025-07-18T00:00:00Z Content type: opinion Language: en Sources: [Kaushik Gopal's Site]() Topics: [Firefox](), [uBlock Origin Filters](), [Chrome](), [firefox for android](), [Firefox extension](), [Open Source]() Tags: [ads](), [android](), [blocking](), [chrome](), [extensions](), [firefox](), [open-source]() ### AI overview An opinionated guide encouraging readers to switch to Firefox, citing its open-source code, support for uBlock Origin, synchronization on Android, and mobile browser extensions. ### Source excerpt Chrome finally pulled the trigger on the web's best ad-blocker, uBlock Origin. Now that Chrome has hobbled uBO, Firefox -- my beloved --1 is surging again. I want to do my part to convince you to switch to Firefox and show you how I use it. Why Firefox # Let's get through the important talking points, in case you need a quick copy paste to convince a friend. 100% open-source Un-enshittify the web Android users rejoice Customize to your heart's content 100% open-source ## This section can be quick. Here's a github link to the source code of the Firefox browser. You can clone the repo, pop open your favorite AI code assistant and start asking questions about your browser - the most important app you use. What libraries does their Android app use? libs.versions.toml boom! Also 8.11.1 on android gradle plugin? not bad Firefox. Their license allows you to fork and distribute alternative versions. Vibe code a whole new browser. Un-enshittify the web ## Most of the web today is enshittified with a cesspool of ads, popups, cookie notices, and tracking scripts. Our primary defense has been ad-blockers, with the most powerful being uBlock Origin. uBO relies on community-curated filter lists that play a cat-and-mouse game to zap known ads, trackers, and other digital sludge. But with Chrome controlling the web, Google followed through on its promise to kneecap uBO with Manifest V3, effectively blocking the full version from its extension store. Sure, there's uBlock Origin "Lite" now, which does the same thing, right? Nope: uBlock Origin Lite != uBlock Origin Filter lists update only when the extension updates no fetching up to date lists from servers (this is a big one!) No custom filters so no element picker which allows you to point and zap Many filters are dropped at conversion time due to MV3's limited filter syntax No strict-blocked pages No per-site switches No dynamic filtering No importing external lists Did you know, uBlock Origin works best on Firefox. Why not just use ## While-you-type Searching DevFeed: [While-you-type Searching]() Original publisher: [Read original article]() Author: Guido van Rossum (noreply@blogger.com) Published: 2009-12-11T21:45:00Z Content type: opinion Language: en Sources: [Guido van Rossum]() Topics: [Google Search](), [Firefox extension](), [Web](), [DuckDuckGo](), [Firefox](), [Users]() Tags: [blog-post](), [extension](), [firefox](), [google-search](), [privacy](), [searching](), [web]() ### AI overview The post proposes a Firefox extension that would search the last few words or the current paragraph while someone is writing and display snippets from top Google results in an unobtrusive pop-up. It distinguishes this idea from autocomplete because the user would not need to initiate a search, and it notes possible benefits for finding answers while writing alongside a privacy concern. ### Source excerpt Here's an idea that is just begging to be implemented as a Firefox extension. You know how there's a while-you-type spell checker that's always on when you are editing text in a multi-line text box? There should be a feature that takes the last few words you're typing (or the entire current paragraph, or whatever works best), does a Google search, and presents snippets for the top few results in an unobtrusive pop-up window. Sure, maybe you're thinking "It looks like you're writing a letter. Do you want me to write it for you?" (the Microsoft paperclip). But using web search instead of a fixed set of patterns could actually make this useful. Imagine the number of messages to customer support forums that will never have to be sent because this feature pops up the answer the user was looking for. And so on. You might also think, "this already exists, it's called Google auto-suggest." But I specifically want it to work when I'm not (yet) actively searching, but just writing. (If it already existed, it might have stopped me from writing this blog post. :-) Twitter might also become a different place if users realized how many others have already entered the same item. Of course there's a little privacy issue. But still, if this existed, I'd opt in! (In fact, I did half a dozen searches while I was typing this. How much easier it would be if I didn't have to select text, switch to a different tab, paste, and hit enter, losing my writing context each tim.) ## Foxden - your life on one page DevFeed: [Foxden - your life on one page]() Original publisher: [Read original article]() Author: Graham King Published: 2009-04-07T00:21:22Z Content type: article Language: en Sources: [Graham King]() Topics: [Firefox extension](), [web applications](), [Firefox]() Tags: [bug](), [email](), [extension](), [file](), [firefox](), [software](), [twitter](), [web-applications]() ### AI overview Foxden is a Firefox extension that tiles the web applications a user relies on, such as email, calendars, feed readers, bug trackers, Twitter, and todo lists, on one page. A 2010 update says the author had not worked on it for over a year and did not recommend using it. ### Source excerpt Update (Nov 2010): I have not worked on Foxden for over a year. I do not recommend you use it. Foxden is a Firefox extension that allows you to tile all the web applications you use on one page. Imagine being able to see your email, your calendar, your bug tracker, feeds, twitter, whatever you use, on one page. Take a look at my setup: As you can see, I have (counter clockwise from top left) my email, calendar, feed reader, todo list and a local text file for taking notes. ## Technologies for better web based applications: XMPP, Flex, and more DevFeed: [Technologies for better web based applications: XMPP, Flex, and more]() Original publisher: [Read original article]() Author: Graham King Published: 2008-01-27T20:39:52Z Content type: tutorial Language: en Sources: [Graham King]() Topics: [web applications](), [Ajax](), [XMPP](), [real-time](), [Single-page application (SPA)](), [JavaScript](), [Firefox extension]() Tags: [ajax](), [applications](), [extension](), [firefox](), [futureofwebapps](), [http](), [javascript](), [software](), [summary](), [web](), [xmpp]() ### AI overview The article explains how web applications differ from traditional websites, focusing on richer graphical interfaces and real-time data. It discusses JavaScript, Adobe Flex, Firefox extensions, AJAX, Comet, and XMPP as approaches for building more interactive and connected applications. ### Source excerpt The web application revolution: blurring the line between websites and software. ## Firefox Sage extension - beginning development DevFeed: [Firefox Sage extension - beginning development]() Original publisher: [Read original article]() Author: Graham King Published: 2006-03-26T15:25:38Z Content type: tutorial Language: en Sources: [Graham King]() Topics: [Firefox extension](), [Firefox](), [Extension](), [Development](), [Mozilla]() Tags: [developer](), [development](), [extension](), [firefox](), [guide](), [mozilla](), [sage](), [software]() ### AI overview A practical guide to developing a local copy of the Sage Firefox extension. It explains how to prepare Firefox, unpack and modify Sage's files, enable logging, and reload changes during development. ### Source excerpt "Unlock the secrets of Sage: A developer's guide to customizing your feed reader."