Text Legibility Firefox

Text Legibility

Makes illegible webpages legible by adjusting text size, contrast, and links.

Features & Capabilities

Are you fed up straining to read web pages with tiny, gray text? Legibility makes web pages easy to read by automatically adjusting font sizes, text contrast, and link visibility. In short, it makes any web page legible. Imagine that, easy to read and no more fiddling with the zoom setting! Once you set a preferred text size and contrast, Legibility adjusts every web page to your personal parameters for legibility.

While adjusting text sizes and contrasts, Legibility preserves the size and color design elements of the web page. Font size relationships are maintained, along with hue relationships. And, unlike using zoom, only text is affected. Photos and graphic elements keep their sizes and positions.

Text legibility is improved in three ways. First, the dominant visible text is scaled to your preferred size. This allows you to read the bulk of the page without strain. You also set minimum and maximum font sizes. Any text that falls outside this range is brought into range, while other sizes are scaled to retain their original size relationships.

Second, text contrast is adjusted to fall within the range you specify. Have you noticed the proliferation of websites designed with gray-on-white text, or worse, dark-gray on light-gray? Such sites are a struggle for anyone with a visual impairment or older than middle age. Legibility will automatically fix the contrast, while keeping the hues of text and background. Contrast can be further increased by a setting that darkens the edge of each character.

Third, link visibility and discoverability can be enhanced with contrasting colors, underlines, and highlights.

Other features: • Shortcuts to quickly increase/decrease text size, or see the unaltered page • Instant response to any adjustment made in the Settings window or with keyboard • The current preferred text size shows in the toolbar

Thanks for checking out Legibility. I hope you enjoy a better web experience.

Version 2.0.2 (14-November-2016)

  • Shortcuts were broken after a Chrome update. Fixed.

Version 2.0.1 (24-October-2016)

  • Google Analytics tracking removed.
  • Edge contrast enhancement slider.
  • When uninstalled, a web page asks for feedback.

Version 1.0.13 (10-July-2016)

  • Shift and Control double click now work correctly on Windows. (A Windows design error causes modifier keys to auto-repeat.)
  • A new checkbox in Settings turns off or on all keyboard shortcuts. This is a convenience for web pages that use Shift and Control for other functions.

User Growth & Download Statistics

Manifest V2 Add-on
By:
Clear Solutions Software
Daily users:
26
Rating:
3.76
(46)
Version:
2.0.5resigned1 Last updated: 2024-05-02
Version code:
5737025
Creation date:
2016-12-03
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • *
Size:
32.90KB
Email:
in*****@cssw.biz
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-13
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Clear Solutions Software
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/text-legibility/
Email:
in*****@cssw.biz
Website:
http://cssw.biz/LegibilityDocs/LegibilityGuide.html

User Reviews

The internet is an awful place nowadays without it. For example Reddit is hard to read with it's light gray text, thin font choice and small font size. Tip: To make this work on all websites instantly checkmark: Compensate for fonts' apparent sizes I'll be supporting you developer soon, this is a must have addon, thank you for being considerate and not making it a montly subsciption (Too many subs and a person goes broke.) I hate whoever started the gray and small font size trend hope they stub their toes every day! I grew up before there were blue light filters or even knowing we needed them, I now have to wear bifocals, I suspect in part because of this. And gray text instead of black? It's so frustrating.
by da*****, 2026-03-29

by 远离*****, 2025-04-20
View all user reviews ›

Is Text Legibility Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Text Legibility requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Text Legibility is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension website URL may be invalid
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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