I will create a custom chrome or firefox extension for one task


About this gig
I will build a focused Chrome or Firefox browser extension that turns one repetitive task into a simple click, shortcut or automatic action.
Ideal examples include:
Adding a custom button to a webpage
Highlighting or hiding chosen page content
Saving or inserting frequently used text
Keyboard shortcuts, timers and counters
Simple page productivity tools
Reformatting visible information
Automating a small, permitted browser workflow
You receive a tested extension, editable source code, installation instructions and one revision. I will check for excessive permissions, exposed secrets, unsafe external scripts and common extension-security issues before delivery.
This gig covers one clearly defined feature. It does not include credential theft, bypassing security, spam, fake engagement, account creation, CAPTCHA solving, prohibited scraping or actions that violate a website's rules. Message first if the task depends on a login, external API or paid service.
Get to know Lead Engine Web
Web Tools and Browser Extension Developer
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English
My Portfolio
Other Software Development Services I Offer
FAQ
What information do you need?
Describe the exact task, target browser, pages it should work on, expected input and output, and any examples. Screenshots or a short screen recording are helpful.
Will you publish it to the browser store?
No. This launch package includes the tested extension files, source code and simple installation instructions. Store publishing and developer-account fees are not included.
What will you not build?
I will not create extensions for credential theft, spam, fake engagement, bypassing security or CAPTCHAs, prohibited scraping, impersonation or activity that violates platform rules.
