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How to eliminate JsTimer from a web browser

Also Known As: JsTimer suspicious extension
Type: Adware
Damage level: Medium

What kind of extension is JsTimer?

JsTimer is presented as a simple timer extension for Chrome browsers. However, we found that it is distributed alongside other dubious extensions and apps. Also, it can read certain information. Therefore, we classified JsTimer as an unwanted extension. If this or any associated extension (like Funny Tool) is already present, users should remove it.

JsTimer unwanted extension

JsTimer in detail

We learned that JsTimer can read browsing history. By accessing browsing activity, JsTimer can track users' website visits, gather data about their online behavior, and potentially share this information with third parties. In addition to harvesting browsing history, JsTimer may collect other potentially sensitive data that might be misused for malicious purposes.

Moreover, this extension might redirect users to unwanted or malicious websites (e.g., phishing websites), which could be designed to steal more data, extract money, or infect devices with malware. Also, JsTimer may alter browser's settings, such as the homepage and default search engine, without user consent.

It is worth noting that once JsTimer is installed, it activates the "Managed by your organization" feature in Chrome browsers. Typically, this feature is used by companies and organizations to enforce specific policies. However, when misused by extensions like JsTimer, it can be exploited for harmful purposes.

Furthermore, JsTimer extension might degrade the web browser's performance, causing it to run slower or crash frequently. As we mentioned in the introduction, JsTimer is distributed alongside other unwanted extensions, including browser hijackers (e.g., QuickSearch). Those apps can also include adware and even more malicious software.

Therefore, having JsTimer added to a web browser can expose users to malicious content, privacy and security issues, and other problems. Users should avoid adding this extension to browsers and remove it if it is already present. Our removal guide for unwanted extensions can be found below.

Threat Summary:
Name JsTimer suspicious extension
Threat Type Unwanted extension
Detection Names N/A (VirusTotal)
Symptoms Your computer becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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Conclusion

In conclusion, unwanted extensions can compromise privacy and security. They may also lead to malware infections or data theft. It is important to remove any suspicious extensions promptly and use trusted sources for downloads. Some examples of other shady extensions are Bull Checker, Download Files Now, FortyFy.

How did unwanted software install on my computer?

It is common for untrustworthy extensions to be added via unofficial app stores or deceptive websites. P2P networks, third-party downloaders, misleading pop-ups and advertisements, and similar channels can also be used to distribute unwanted extensions and trick users into downloading them.

Another method to distribute unwanted apps and extensions is to bundle them with dubious and free software. During installations, users might not notice the included offers and agree to add/install unwanted apps or extensions. Usually, these offers are hidden in "Advanced", "Custom", or similar settings.

How to avoid installation of unwanted applications?

Always get extensions, apps, and software from official websites or reputable app stores. During installation, look for "Custom" or "Advanced" or similar settings and deselect any unwanted offers. Avoid clicking on suspicious links, pop-ups, or ads, and make sure your programs and operating system are kept up to date.

Additionally, regularly use a trusted antivirus program to scan your computer for threats. If your computer is already infected with rogue applications, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.

Description of the JsTimer extension:

JsTimer unwanted extension description

Appearance of JsTimer extension:

JsTimer unwanted extension timer

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:

Unwanted software removal:

Windows 11 users:

Accessing Apps and Features in Windows 11

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Accessing Programs and Features (uninstall) in Windows 8

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Accessing Programs and Features (uninstall) in Windows 7

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Uninstall app in OSX (Mac)

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

JsTimer uninstall via Control Panel

In the uninstall programs window, look for any unwanted applications, select these entries and click "Uninstall" or "Remove".

After uninstalling the unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove unwanted extensions from Internet browsers:

Video showing how to remove unwanted browser add-ons:

Google Chrome logoRemove malicious extensions from Google Chrome:

Removing JsTimer from Google Chrome step 1

Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome), select "Extensions" and click "Manage Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".

If the extension is locked (you see the "Your browser is managed by your organization" feature enabled) read this article for detailed removal instructions.

Removing JsTimer from Google Chrome step 2

Optional method:

If you continue to have problems with removal of the jstimer suspicious extension, reset your Google Chrome browser settings. Click the Chrome menu icon Google Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

Google Chrome settings reset step 1

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

Google Chrome settings reset step 2

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Google Chrome settings reset step 3

Mozilla Firefox logoRemove malicious plug-ins from Mozilla Firefox:

Removing JsTimer from Mozilla Firefox step 1

Click the Firefox menu firefox menu icon (at the top right corner of the main window), select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".

Removing JsTimer from Mozilla Firefox step 2

Optional method:

Computer users who have problems with jstimer suspicious extension removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, firefox menu icon in the opened menu, click Help.

Accessing settings (Reset Firefox to default settings step 1)

Select Troubleshooting Information.

Accessing Troubleshooting Information (Reset Firefox to default settings step 2)

In the opened window, click the Refresh Firefox button.

Clicking on Refresh Firefox button (Reset Firefox to default settings step 3)

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Confirm your want to reset Firefox settings to default (Reset Firefox to default settings step 4)

safari browser logoRemove malicious extensions from Safari:

removing adware from safari step 1 - accessing preferences

Make sure your Safari browser is active, click Safari menu, and select Preferences....

removing adware from safari step 2 - removing extensions

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

resetting safari step 1

In the opened window select all history and click the Clear History button.

resetting safari step 2

Microsoft Edge (Chromium) logoRemove malicious extensions from Microsoft Edge:

Removing adware from Microsoft Edge step 1

Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Removing adware from Microsoft Edge step 2

Optional method:

If you continue to have problems with removal of the jstimer suspicious extension, reset your Microsoft Edge browser settings. Click the Edge menu icon Microsoft Edge (chromium) menu icon (at the top right corner of Microsoft Edge) and select Settings.

Microsoft Edge (Chromium) reset step 1

In the opened settings menu select Reset settings.

Microsoft Edge (Chromium) reset step 2

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

Microsoft Edge (Chromium) reset step 3

  • If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

declining installation of adware while downloading free software sampleCommonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

Post a comment:
If you have additional information on jstimer suspicious extension or it's removal please share your knowledge in the comments section below.

Frequently Asked Questions (FAQ)

What is the purpose of an unwanted extension?

The purpose of an unwanted extension is often to collect personal data, inject unwanted ads, or alter browser settings.

Is JsTimer unwanted extension legal?

In many cases, unwanted extensions are considered legal because their End User License Agreements (EULA) usually disclose their potential behavior to users.

Is having JsTimer added to my browser dangerous?

This extension may collect sensitive information, restrict access to specified websites, add other unwanted extensions, or perform other actions. Also, it is bundled with other dubious extensions. Therefore, having JsTimer added to a browser could cause various problems.

Will Combo Cleaner help me remove unwanted applications?

Yes, Combo Cleaner will scan your computer and remove all malicious unwanted applications. It is worth mentioning that manual removal might not be entirely effective. Some leftover files and components may remain hidden in the system even after removing the unwanted app.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Removal Instructions in other languages
Software uninstall instructions
Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
JsTimer suspicious extension QR code
Scan this QR code to have an easy access removal guide of JsTimer suspicious extension on your mobile device.
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