I will develop custom chrome extension or firefox plugin for your business


About this gig
Need a custom Chrome or Firefox extension to automate tasks, scrape data, or extend your website's functionality? I'll build it for you.
I develop browser extensions and plugins that solve real business problems from simple productivity tools to complex automation scripts that interact with your web apps.
What I can build:
- Form auto-fill and form submission automation
- Web scraping and data extraction extensions
- Multi-tab interaction and browser automation
- API-connected extensions (pull data from your backend)
- Custom popup dashboards and side panels
- Productivity tools and content scripts
- Extensions that modify or enhance specific websites
What you'll get:
- Clean, well-documented JavaScript code
- Compatible with the latest Chrome and Firefox versions
- Easy installation instructions
- Clear support during testing and revisions
I have 7+ years of full stack development experience and I'm comfortable handling both the extension code and any backend API it needs to talk to.
Send me a message before ordering with a quick description of what you want the extension to do I'll suggest the right package and timeline.
Let's build something that saves you (or your users) real time.
Get to know Molset H
Full Stack Developer for Web and Mobile
- FromPakistan
- Member sinceJun 2018
- Last delivery5 years
Languages
English, Hindi, Urdu
FAQ
What kind of extensions can you build?
Productivity tools, web scrapers, form automation, API-connected dashboards, content modifiers, and almost anything that runs in a Chrome or Firefox browser.
Will the extension work on both Chrome and Firefox?
Yes. Most extensions can be built to work on both browsers with small adjustments. I'll confirm compatibility for your specific case.
Do you handle publishing to the Chrome Web Store?
I provide the final extension package ready for upload, plus instructions on how to publish. If you'd like me to publish it for you, I can do that as a custom add-on.
Can you connect the extension to my existing API or website?
Yes — I'm a full stack developer, so I can build both the extension and any backend API it needs to communicate with.
Will I receive the source code?
Yes. You get the complete source code, so you (or another developer) can modify or extend it later.
What information do you need to start?
A clear description of what the extension should do, any websites it needs to interact with, and screenshots or examples if you've seen something similar.
