Replaces a thumbnail on the YouTube homepage with a local image.

Latest Version

Version
2.1
Update
September 6, 2023
Size
24.97KiB
Developer
Category
Users
464
Rating
5 ★
Manifest Version
3
Web Store Status
Languages Support
English (UK)
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Permissions
Storage
Scripting
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YouTube Thumbnail Preview Extension

Elevate your YouTube browsing experience with YouTube Thumbnail Preview!

This Chrome extension allows you to effortlessly replace the thumbnails and titles of videos on YouTube with your own custom pictures and text.

Whether you're looking to have a bit of fun or simply want to personalize your YouTube experience, YouTube Thumbnail Preview is the perfect solution.
With an easy-to-use interface and seamless integration, this extension offers a new level of customization that is sure to impress.

Key features:
- Replace video thumbnails with your chosen custom image,
- Change video titles to your preferred custom text,
- Modify one random thumbnail and title among the first 7 videos displayed,
- Retain your custom image and title settings even after closing the extension window,
- Sleek and modern design for an enjoyable user experience.

This extension is open-source! :)
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "YouTube Thumbnail Preview", "version": "2.1", "description": "Replaces a thumbnail on the YouTube homepage with a local image.", "action": { "default_popup": "popup.html", "default_icon": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" } }, "permissions": [ "storage", "scripting" ], "host_permissions": [ "*://*/*" ], "background": { "service_worker": "background.js" }, "icons": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" }, "content_scripts": [ { "matches": ["https://www.youtube.com/*"], "js": ["content_script.js"] } ]}
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How to download and manually install YouTube Thumbnail Preview extension for Chrome

Looking for a way to install YouTube Thumbnail Preview extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install YouTube Thumbnail Preview extensions manually, this article outlines two simple methods to effortlessly install YouTube Thumbnail Preview extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download YouTube Thumbnail Preview extension and manually install through Drag &Drop

If you ever need to manually install a YouTube Thumbnail Preview extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the YouTube Thumbnail Preview Extension by clicking the "Download CRX" button on the website.

Look for the YouTube Thumbnail Preview extension you wish to install. Go to the website and download the YouTube Thumbnail Preview extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for YouTube Thumbnail Preview extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the YouTube Thumbnail Preview extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download YouTube Thumbnail Preview extension for Chrome and install in Developer Mode

This is another method to install YouTube Thumbnail Preview extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the YouTube Thumbnail Preview extension file

Select and download the YouTube Thumbnail Preview extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the YouTube Thumbnail Preview extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your YouTube Thumbnail Preview extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the YouTube Thumbnail Preview extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install YouTube Thumbnail Preview extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Vizery (ID: 0000005cd2974a37) Voted 5 ★ - Updated 10/07/2023 This should be the most used extension by YouTubers. The practicality and infinite testing by using the Homepage is insane!

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Paul Rolland (ID: 000000174940225e) Voted 5 ★ - Updated 03/27/2023 C'est un super travail, cela me permet d'optimiser mon temps lors de l'update de mes video. Bravo.

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NML NML (ID: 00000030c0773322) Voted 5 ★ - Updated 03/23/2023 very useful ! this is exactly what I was looking for to have a rendering of my youtube thumbnails! I recommend 100%

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Stéphane Collin (ID: 0000002e64d3d0ec) Voted 5 ★ - Updated 03/22/2023 Very creative extension to test and have fun with YouTube thumbnails!

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Jonathan Lutz (ID: 00000034d5c77f7b) Voted 5 ★ - Updated 03/22/2023 Exactly what I was looking for! Thanks!!