All extensions

Controlled network and JSON failure injection for local web application testing.

FaultyPacket Security, DNS & PHP2Shell Inspector

1-click SPF, DMARC, HTTP Security Header & PHP2Shell (CVE-2026-109618) posture scanner for IT admins and security consultants.

Favian Photo SEO & Image Checker

Audit webpage images for missing alt text, weak filenames, dimensions, formats and likely performance issues.

FBA Profit Calculator

FBA profit calculator on Amazon listing pages: 2026 dual-season rates, fuel & shipping surcharges, live fee breakdown. Free.

FB Share Manager

Manage Facebook group sharing queues, schedules and manually verify posting results.

Featured Image Resizer

Resize any image for WordPress and social sizes, and check a page's Open Graph / Twitter image. Runs locally, nothing is uploaded.

FE Auditor

从专业前端视角评估网页质量并导出 WebP 报告

FEDevHelper

A tools for front-end developers to enhance productivity and streamline workflows.

Feedback Extension

This extension easily store your feedback =)

feedback.tools Helper

Verify that feedback.tools survey widgets are correctly installed on your website.

5.0

FESCO Bill Checker

Quickly check your FESCO electricity bill online.

FIFO Sync

Automatically syncs your bank transactions with FIFO in the background.

Figgy

Figma 디자인을 브라우저 우측 대시보드에 오버레이하는 도구

Fije Log Explorer for Salesforce

Search and analyse Salesforce debug logs: filter by user/time, keyword search in log content, colour-coding by event type.

FireAPI SEO – AI Meta Analyzer

Professional SEO auditor by FireAPI. Analyze meta tags, live-edit titles, and export SEO reports instantly.

Firefind

Shows the tag name of the element under your cursor in a dark floating box.

FireImager - Free Image Cloud Manager

Scan, upload, and manage images via FireImager API. Extract page images, upload to cloud, and browse your gallery.

First Base: The Packaged App Boilerplate

If you're looking to get started quickly building a packaged application for Google Chrome or for Chrome OS, just clone this…

FirstVisitMD Chrome Extension

FirstVisitMD Chrome Extension

Fixhub

QOL fixes for github.

FixOnce - Error Trapper

AI Memory Layer for developers. Capture errors, build solution memory, never debug the same bug twice.

FixPin — Website Feedback & Bug Reports

Click any element, leave a comment and send a report with screenshots. Free, no sign-up, no cloud.

Flintrail

Let your AI agent drive this browser through Flintrail, and teach it a task by doing it once yourself.

Floating UI

Injects a movable dialog into the page.