app.telemetry Page Speed Monitor

Name: app.telemetry Page Speed Monitor
Rating: 3.9333 (15 reviews)
Author: app.telemetry

Get the page load times of any web page! app.telemetry Page Speed Monitor shows offset and duration of each step during the page load based on W3C navigation timing.

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The app.telemetry Page Speed Monitor Chrome extension enables users to track the load times of any web page instantly. By leveraging the W3C navigation timing API, it provides detailed insight into the offset and duration of each stage during a page's load process. Upon visiting a page, users see the load time right in the menu bar, with further detailed metrics accessible with a simple click.

Ideal for web developers, SEO specialists, and performance analysts, this extension helps identify bottlenecks and optimize website speed effortlessly. For comprehensive information on metrics and usage, visit the official app.telemetry page speed monitor website.

Add-on Developer Tools Productivity Analytics

By:

Daily users:

Rating:

Version:

17.1.11resigned1 Last updated: 2024-04-25

Version code:

5726139

Creation date:

2012-06-12

Risk:

Permissions:

tabs
http://*/*
https://*/*

Size:

32.50KB

Full description:

Source:

Firefox Browser Add-ons

Data ingested on:

2025-07-14

Ranking

# 2,816 ▲ 14

Other rankings

#323 in Web Development ▲ 4

#4 in monitor keyword 38

#34 in speed keyword 64

#52 in page keyword 69

#56 in element keyword 24

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User reviews

Users appreciate this add-on as a simple and clear tool to measure page load times, serving as a suitable replacement for deprecated extensions. However, multiple reviews highlight issues like lack of real-time speed display during loading, small icon/badge size, privacy concerns due to extensive permissions, compatibility problems with privacy settings, and unclear visual cues for loading completion.

Pros

Provides clear page load speed information.
Serves as a good replacement for the Extended Statusbar extension.
Simple and easy to use for monitoring page load times.
Offers detailed internet speed and stability information.

Cons

Lacks option to display loading speed in real time during page loading.
The icon and badge display are small and difficult to read for some users.
Requires invasive permissions, raising privacy concerns.
Compatibility issues when privacy.resistFingerprinting is enabled.
Unclear indication of when page loading completes, suggesting need for color changes in icon.

Recent reviews

by 退出*****, 2025-03-23

by 远离*****, 2025-02-10

It works, but it would be better to show the speed at which the current page is loading. And even better, it could be selected in the settings.

by Fi*****, 2024-11-28

View all user reviews ›

Extension safety

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.

app.telemetry Page Speed Monitor requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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 Browser Add-ons, 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.

app.telemetry Page Speed Monitor has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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