Text to Speech (TTS)

Name: Text to Speech (TTS)
Rating: 2.3223 (121 reviews)
Author: Morni

By: Morni

Text to Speech is a text to speech engine with natural sounding voices.

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Features & Capabilities

Text to Speech (TTS) is a lightweight browser extension that converts selected or entered text into natural-sounding speech using two engines: the native HTML5 Web Speech API for instant browser synthesis, and the Kokoro AI engine for higher-quality, AI-driven voices. Kokoro requires a one-time download (~300MB) but can run fully offline afterward and supports saving audio output as a WAV file.

Use the standalone interface via the toolbar to paste text, or trigger in-page playback by selecting text and clicking the speaker icon (highlighting is beta and works best when selecting paragraph-by-paragraph). Adjustable in-page options are available in the extension settings. For bugs or feedback, visit the add-on homepage to submit a report.

User Growth & Download Statistics

Add-on Accessibility GenAI Music & Audio

By:

Morni

Daily users:

3,125 -25

Rating:

2.32

(121)

Version:

0.2.9 Last updated: 2025-10-19

Version code:

6056973

Creation date:

2014-12-25

Risk:

Permissions:

Content scripts matches:

Size:

5.87MB

Email:

cl*****@yahoo.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-11

Compare stats and ranking:

Ranking

# 1,597 ▼ 10

Other rankings

#67 in Language Support

#171 in Social & Communication ▼ 4

#2 in speech keyword 62

#2 in text to speech keyword 65

#3 in speech to text keyword 29

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Other platforms

Text to Speech (TTS) (v0.2.9)

40,000 3.20

(35)

Text to Speech (TTS) (v0.2.9)

7,609 3.20

(10)

For Developers

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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:

Morni

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/text-to-speech-webext/

Email:

cl*****@yahoo.com

Website:

https://mybrowseraddon.com/text-to-speech.html

User Reviews

Most reviews are negative about this Firefox TTS extension. A few users praise that it can read text aloud, and one notes a highlighting feature. However, the majority report significant drawbacks: the voices sound robotic and not natural, the UI requires a separate window which disrupts browsing, and audio can fail to play or not be installed at all. Some mention limited content support (e.g., PDFs) and the need to tweak about:config settings. Overall, it trails behind smoother, more natural TTS experiences like Edge’s.

Pros

Reads text aloud (text-to-speech output is functional)

Cons

Voices are robotic/not natural and of low perceived quality
User experience is poor due to the extension opening a separate window instead of reading inline
In some cases the extension produces no sound or fails to install voices (unreliable audio)

Recent reviews

by Re*****, 2026-01-26

There is no option in the context menu to select text on the page and read directly. Also, the voice is too robotic, take an example from MS Edge and their reader and TTS And one more thing, TTS does not support my language :((

by ho*****, 2026-01-08

Stop bullshitting people with your robot voices from Microsoft in your TTS extension. This extension is simply the last shit because these Microsoft robot voices are unbearable.

by Ma*****, 2025-06-11

View all user reviews ›

Is Text to Speech (TTS) 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 to Speech (TTS) 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 to Speech (TTS) is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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