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Reading Helper Ruler

mozilla.orgBrowser DevTools & extensions

PulseGate's liveness check found it on 19 Sep 2026; it is registered on Firefox Add-ons and has been in the index since 19 Sep 2026. How this is checked

Reading Helper Ruler is a Firefox browser extension that overlays a customizable virtual ruler on webpages to help users track lines and maintain reading focus. It supports per-website preferences and is also available for Firefox on Android.

Inferred · not functionally tested

FreeWebEmbeddableAndroid
Reading Helper Ruler preview
Visit mozilla.org
2alternatives
5features
2025since

Overview

5 features

Purpose: Keeping your place and maintaining focus while reading long webpages.

Inferred · not functionally tested

Audience: Firefox users who want visual reading assistance

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, embeddable, android

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: addons.mozilla.org · addons.mozilla.org. These links do not verify the individual claims.

In the Browser DevTools & extensions space, Reading Helper Ruler takes a focused approach. Inferred · not functionally tested: It focuses on keeping your place and maintaining focus while reading long webpages. Inferred · not functionally tested: It is built as a consumer product for firefox users who want visual reading assistance. Basis unknown · not verified: Reading Helper Ruler costs nothing to use. Basis unknown · not verified: It runs on the web, embeddable surfaces, and Android.

GMan builds and maintains Reading Helper Ruler, and it first shipped in 2025. Inferred · not functionally tested: Key capabilities include virtual ruler, customizable appearance, and per-site preferences. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Virtual ruler
  • Customizable appearance
  • Per-site preferences
  • Firefox for Android
  • No data collection

Topics: Inferred · not functionally tested

Tags
reading-rulerfocus-assistanceaccessibility-extensionweb-reading

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserEmbeddableAndroid

Trust & compliance

Public signals
HTTPSPrivacy PolicyTerms of ServiceFree tierMulti-languageStore listing found
Legal
Privacy Policy Terms of Service

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed19 Sep · 08:48 UTC
    Reading Helper Ruler seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about Reading Helper Ruler

What is Reading Helper Ruler?
Inferred · not functionally tested: Reading Helper Ruler focuses on keeping your place and maintaining focus while reading long webpages. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Reading Helper Ruler for?
Inferred · not functionally tested: Reading Helper Ruler is a consumer product built for firefox users who want visual reading assistance.
Is Reading Helper Ruler free?
Basis unknown · not verified: Yes — Reading Helper Ruler is free to use.
What platforms does Reading Helper Ruler run on?
Basis unknown · not verified: Reading Helper Ruler runs on the web, embeddable surfaces, and Android.
Is Reading Helper Ruler still active?
PulseGate's liveness check found it on 19 Sep 2026.
What projects are similar to Reading Helper Ruler?
Similar projects tracked by PulseGate include Reading Ruler, Ruler, and Reading Ruler.Reading RulerRulerReading Ruler
Who makes Reading Helper Ruler?
Reading Helper Ruler is developed by GMan.
When did Reading Helper Ruler launch?
Reading Helper Ruler first shipped in 2025.

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