Firefox Enterprise Is Here. How to Get Its AI Controls Free with policies.json
If you run plain Firefox, at home or on a fleet of laptops managed with a policies.json file, Firefox Enterprise takes nothing away from you. Mozill…
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JavaScript Error Handling: Custom Error Types, Result Pattern, Global Handlers, and Error.cause
JavaScript error handling is often an afterthought — a try/catch here and there. But a robust error handling strategy makes the difference between a…
Tab Manager & Session Saver for Firefox: Complete Guide to Named Sessions, Workflows, and Organization
Tab management is one of the most common pain points for browser users. The average knowledge worker has 20+ tabs open at any time; developers and r…
Vim Keybindings in Firefox: Tridactyl Setup, Configuration, and Workflow
Vimperator, Pentadactyl, and Tridactyl are extensions that bring Vim-style keyboard navigation to Firefox. If you spend most of your time in a termi…
Regex in Firefox: Named Groups, Unicode Support, and DevTools Debugging
Firefox's DevTools include regex testing capabilities, and Firefox's JavaScript engine has some regex-specific features worth knowing for developers…
Testing Security Headers in Firefox: CSP, HSTS, X-Frame-Options, and DevTools Debugging
Security headers are server-side HTTP headers that instruct browsers on security behavior. Firefox implements all the major ones. Here's a practical…
Firefox for Testing and Automation: geckodriver, Playwright, and CI Pipelines
Firefox is an excellent choice for automated testing and web scraping — it has official WebDriver support (geckodriver), a stable API, and unique fe…
about:config Settings Worth Changing (and What Not to Touch)
about:config is Firefox's advanced settings panel — a flat key-value store for hundreds of internal preferences. Most users never touch it. Knowing…
Firefox vs LibreWolf vs Tor Browser: Choosing the Right Privacy Tool
Three Firefox-based browsers with different privacy postures. Here's an honest breakdown of what each protects against and when to choose each. The…
Firefox vs Chrome for Privacy: What's Actually Different
Firefox vs Chrome for Privacy: What's Actually Different "Firefox is better for privacy" is the standard recommendation, but most guides don't expla…
Firefox Extensions for Researchers and Students (That Don't Require an Account)
Firefox Extensions for Researchers and Students (That Don't Require an Account) Research workflows involve a specific kind of browser chaos: dozens…
Setting Firefox Bookmark Keywords From an Extension, Without an API for It
I use bookmark keywords all day. Type "jira" in the address bar, hit enter, and you're on the board. Firefox gives a keyword the top "Visit" suggest…
Writing unit test for Firefox private browsing window
Our indicator looks like this: an icon + a label. The browser has an indicator for when a user is in private mode. The indicator lives in two places…
How to Use the OpenWeatherMap API in a Firefox Extension
How to Use the OpenWeatherMap API in a Firefox Extension Weather data is one of the most commonly requested features in new tab extensions. The Weat…
Handling Offline Mode in Firefox Browser Extensions
Handling Offline Mode in Firefox Browser Extensions When building extensions that depend on network data — like my Weather & Clock Dashboard — o…
How I Automated Firefox Extension Screenshots for AMO Listings
How I Automated Firefox Extension Screenshots for AMO Listings One of the most tedious parts of publishing to Mozilla's Add-On Observatory (AMO) is…
Performance Tips for Firefox New Tab Extensions: Sub-100ms Load Times
Performance Tips for Firefox New Tab Extensions: Sub-100ms Load Times Every time someone opens a new tab, your extension loads. If it's slow, they'l…