A stock ticker on a browser tab sounds redundant when every phone already has a stocks app. The difference is friction.
My phone's stocks app requires: unlock phone, find app, wait for load. That is 20 seconds. When I am already at my computer with Firefox open, the same information is a new tab away if the extension is installed.
Stock Market and Finance Dashboard
This Firefox extension shows a live stock ticker on your new tab. Configure the symbols you want to track once — stocks, ETFs, indices. Every time you open a new tab, you see: current price, day change, and percentage change.
Setup:
- Install the extension
- Enter your symbols (AAPL, MSFT, VOO, ^GSPC, whatever you watch)
- Done
The symbols are stored locally. The data comes from a public market API — the same underlying data as most finance sites, without the ads and onboarding flows around it.
Stock Market and Finance Dashboard — Firefox Add-ons
Why the new tab specifically
A dedicated browser tab for stocks works better than a widget or sidebar for two reasons:
Passive visibility: every new tab you open during the day shows the market status. You do not need to actively check; it is always there.
Clean focus: the new tab has nothing else on it. You see the numbers you chose and nothing else. No ads, no news feed pushing you toward specific stocks.
Comparison to built-in browser features
Firefox does not have built-in stock tracking. The closest native option is the browser's default new tab, which can show some news content — but not configurable financial data.
Third-party finance sites work but require opening a site, navigating away from ads, and looking for the specific numbers you want.
The extension's value is specificity: you define exactly which symbols appear, and that is all that shows.
Privacy note
Your watchlist is stored in Firefox's local extension storage. The extension fetches public market data for the symbols you configured. The company behind the extension has no view into which symbols you are watching.
Stock Market Dashboard is one of 11 Firefox extensions I built — see the full series.
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