Different jobs have different browser habits. A journalist keeping up with breaking news has different Firefox needs than a developer tracking dependencies or an investor watching positions.
Here are the Firefox extensions I built, organized by which professional workflows they fit best.
For investors and traders
Stock Market and Finance Dashboard puts a live ticker on your new tab. You set the symbols — stocks, ETFs, indices. Every new tab shows current price and day change.
Practical use: check market open without opening a brokerage app. Track a watchlist during the day.
Install Stock Market Dashboard
For journalists and researchers
Voice Notes and Audio Recorder captures voice notes locally. Click record, speak, download as MP3. Nothing goes to a server.
Practical use: quick verbal note during an interview, before you lose the detail. The audio stays on your machine.
News Widget Dashboard aggregates headlines from RSS feeds you choose. No algorithmic curation, no ads.
Practical use: monitor a beat — technology news, local politics, specific topics — across multiple sources in one place.
For writers and editors
AI Writing Assistant provides grammar checking and text rewriting that runs entirely in Firefox. No cloud processing — your text never leaves the browser.
Practical use: edit sensitive drafts (legal, medical, confidential) without putting the text through a third-party API.
For anyone managing many projects
Tab Manager and Session Saver lets you save a named set of tabs as a session and restore it later.
Practical use: save a research context (8 tabs for one client project) and close it. Restore it next time you work on that project. End every day with zero parked tabs.
For anyone doing late-night work
NightOwl applies dark mode to every website automatically. It auto-schedules by sunset and sunrise for your location.
Practical use: dark mode turns on at sunset and off at sunrise without any manual toggle.
Common thread
All of these are:
- Free (no subscription, no freemium gates)
- No account required
- Local storage only — no data synced to a server
For professionals handling sensitive content, the last point matters. None of these extensions report usage, store your data, or require authentication.
These are six of 11 Firefox extensions I built — see the full series.
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