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I will build a custom chrome extension or tampermonkey userscript
Bron M
About this gig
Want one button on a website that does the boring part for you? I build Chrome extensions and Tampermonkey userscripts that do exactly one job well.
Good fits:
- Add a button or keyboard shortcut to a site you use daily
- Hide, rearrange or highlight parts of a page
- Copy or export data you can already see on the page to CSV
- Fill your own forms with your own saved data
- Fix or update an old extension to Manifest V3
Extension or userscript? If a userscript does the job, I'll tell you. It's cheaper and faster. If you need a popup, saved settings or the Chrome Web Store, you need an extension.
Every package includes:
- Full source code
- Install steps for Chrome or Edge
- A short test list so you can check every feature in minutes
Not included: captcha or login bypass, appointment, ticket or checkout bots, fake installs or reviews, mass messaging, or anything against a site's terms.
Message me before ordering with the page link and what you want to happen. I'll tell you which package fits.
Get to know Bron M
Bron M
Windows apps, browser extensions and Python automation
- FromBulgaria
- Member sinceOct 2026
Languages
English, Bulgarian, German, Japanese
I'm a software engineer from EU. I build small, focused tools that save people time: Windows desktop apps, browser extensions and userscripts, Python automations and bots. I also ship my own products, like a Windows tray app that merges screenshots with one hotkey and a file converter that adds Convert to the right-click menu. Tell me the boring task you repeat every day and I'll build the tool that does it for you. Clean code, clear instructions, fast replies.
Other Software Development Services I Offer
FAQ
Extension or userscript, what's the difference?
A userscript runs inside the free Tampermonkey extension and changes one site. Quick to make, easy to edit. A Chrome extension has its own icon, popup and settings, and can go on the Chrome Web Store. For one small change on one site, a userscript is usually enough.
The page I need is behind a login. Can you still do it?
Yes, but I never ask for your password. Save the page with Ctrl+S (or send screenshots) and I'll build against that copy. You test it on the real site with your own account.
Will it work in Edge or Firefox?
Extensions work in Chrome and Edge. Userscripts work in Chrome, Edge and Firefox with Tampermonkey.
What happens if the website changes its layout?
Sites change, and scripts that read a page can break when they do. I write them so a small change is easy to fix. A fix after delivery is a new small order unless it falls inside your revisions.
Can you publish it to the Chrome Web Store for me?
Premium includes the listing text, icons and screenshots, and I'll walk you through publishing it under your own developer account. Google charges a one-time $5 fee for that account, which you pay.
