The Reading Ruler

A ruler that overlays a website to help you read. Helpful for people who struggle with reading and retaining information.

The Reading Ruler is available to install from Firefox Browser Add-ons and for download from this page. It has 26 active users The latest version is 2.0.2, and it was published 4 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 0 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of The Reading Ruler here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions
Version Download Size Download count Timestamp
2.0.2 XPI · ZIP · Source code 244.95K 0 2024-09-19
2.0.1 Paid users only 244.94K 0 2024-06-06
2.0.0 Paid users only 198.72K 0 2024-05-17
1.1.0 Paid users only 26.11K 0 2024-04-15
1.0.1 Paid users only 25.96K 0 2024-02-08
1.0.0 Paid users only 21.59K 0 2024-02-05

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

  1. Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  1. In Firefox browser, go to about:addons to open Add-ons Manager
  2. Click on , then select Install Add-on From File
  3. Select the The Reading Ruler ZIP file from step 1. The Reading Ruler is now installed on your browser.