swandrn
browsing_data
JavaScript

A Firefox extension to view and download your natural behavior whilst browsing the web

Last updated Nov 24, 2025
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JavaScript 93.2%
HTML 4.7%
CSS 2.1%
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README

Browsing Data

Collect the natural behavior of different actions executed on the browser. This data can be downloaded as a CSV.

Details

All of it is written in vanilla JS.\ Data is stored in localStorage.\ Extension permissions:

  • tabs

Intended Purpose

Use this data to implement human like behavior in bots interacting with websites.

Actions Supported

  • mousedown
  • mouseup
  • scrolling
  • keydown
  • keyup
  • a mousedown immediately followed by a mouseup can be converted to a click
  • two clicks in less than a 500ms interval can be condensed to a double click

Read the CSV file

The file name is built like so:

  • the type of data (detailed or condensed)
  • the current date (day-month-date-year)
  • the domain name
In the CSV file, the data presented varies depending on the action.

For a mousedown/mouseup:

  • page title the action was executed on
  • page url the action was executed on
  • the type of action executed
  • the action id
  • the text content of the element hovered at the time of the action
  • the x coordinate of the cursor
  • the y coordinate of the cursor
  • the timestamp in millisecond (JavaScript Date.now())
For a click:
  • page title the action was executed on
  • page url the action was executed on
  • the type of action executed
  • the action id
  • the text content of the element hovered on mousedown
  • the text content of the element hovered on mouseup
  • the x coordinate of the cursor on mousedown
  • the y coordinate of the cursor on mousedown
  • the x coordinate of the cursor on mouseup
  • the y coordinate of the cursor on mouseup
  • the timestamp in millisecond (JavaScript Date.now()) of the mouseup action
  • the click time in millisecond
For a double click:
  • page title the action was executed on
  • page url the action was executed on
  • the type of action executed
  • the first click id
  • the second click id
  • the text content of the element hovered on the first mouseup
  • the text content of the element hovered on the second mouseup
  • the x coordinate of the cursor on first mouseup
  • the y coordinate of the cursor on first mouseup
  • the x coordinate of the cursor on second mouseup
  • the y coordinate of the cursor on second mouseup
  • the timestamp in millisecond (JavaScript Date.now()) of the second mouseup action
  • the sum of the two click times in millisecond
For a scroll:
  • page title the action was executed on
  • page url the action was executed on
  • the type of action executed
  • the action id
  • the scroll direction
  • the height scrolled in px
  • the timestamp in millisecond (JavaScript Date.now()) at the end of the scroll
For a keydown/keyup
  • page title the action was executed on
  • page url the action was executed on
  • the type of action executed
  • the action id
  • the timestamp in millisecond (JavaScript Date.now())

Actions to come

  • Taking suggestions

Contributing

Pointers on algorithm optimization when it comes to both speed and memory usage are greatly appreciated.

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