A browser extension for limit loading of the images by data size or quality to save bandwidth.

Latest Version

Version
2.1
Update
December 21, 2023
Size
32.14KiB
Developer
Category
Users
2,000+
Rating
4.04545 ★
Manifest Version
3
Web Store Status
Languages Support
English
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Permissions
Tabs
ActiveTab
DeclarativeNetRequest
Storage
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Tunable Image Block Extension

*** Configuration ***

At first, don't forget to set a limit mode and value in the Options of the extension.

*** Usage & Hotkeys ***

Use Ctrl + mouse move over image for load the original instance.

Note that, a host settings (limit mode and value) restores after browser reloading, but the on/off states of tabs does't.

If you want to see only small images(like icons) but cut off the big, then set image data size between 1K - 5K.

*** Known issues ***

1.On some sites the image fully loading(Ctrl + Mouseover) not working well. It depends on how site was built. I have fixed many issues but I guess that is not all.
2.On some sites a limitation of the image data size is not working. Images loads fully. It happens when a server ignores specific parameter in the request.

*** Release notes ***

2.1
- Fix showing on popup host without \".tld\".
- All net request rules are session now to fixed order of execution.
- Fix reload original image after the first load error.

2.0
- First major release.

All the best!
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx","name": "Tunable Image Block","version": "2.1","description": "A browser extension for limit loading of the images by data size or quality to save bandwidth.","manifest_version": 3,"permissions": ["tabs", "activeTab", "declarativeNetRequest", "storage"],"icons": { "128": "icon/icon-128.png"},"action": {"default_title": "Tunable Image Block","default_icon": "icon/icon-128.png","default_popup": "popup.html"},"host_permissions": [""],"background": {"service_worker": "js/background.js","type": "module"},"content_scripts": [{"matches": ["http://*/*","https://*/*"],"js": ["js/content-import.js"],"css" : ["css/image.css"],"run_at": "document_start"}],"web_accessible_resources": [{"matches": [""],"resources": ["js/content.js", "js/api.js", "js/log.js"]}],"options_ui": {"page": "options.html"},"author": "Deiv Astra"}
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How to download and manually install Tunable Image Block extension for Chrome

Looking for a way to install Tunable Image Block 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 Tunable Image Block extensions manually, this article outlines two simple methods to effortlessly install Tunable Image Block extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Tunable Image Block extension and manually install through Drag &Drop

If you ever need to manually install a Tunable Image Block 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 Tunable Image Block Extension by clicking the "Download CRX" button on the website.

Look for the Tunable Image Block extension you wish to install. Go to the website and download the Tunable Image Block extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Tunable Image Block 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 Tunable Image Block 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 Tunable Image Block extension for Chrome and install in Developer Mode

This is another method to install Tunable Image Block 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 Tunable Image Block extension file

Select and download the Tunable Image Block 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 Tunable Image Block 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 Tunable Image Block 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 Tunable Image Block 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 Tunable Image Block extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Abdullah Almahmud (ID: 000000c53a990e6b) Voted 4 ★ - Updated 11/29/2023 Please bring an update for this extension, matching with chrome version 101. sometime its not showing any image in webpages (but all setting are ok), fix this please.

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javad mnjd (ID: 000000bb8a4b3f6a) Voted 3 ★ - Updated 05/06/2023 It's a very good extension, but without ability to save settings across restarts It is very annoying. only if it could remember the settings per website after restart it would be great!

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Pat MySecret (ID: 0000000f565a0b8a) Voted 3 ★ - Updated 12/19/2022 Best for someone limiting data usage. For simple image on/off, there's a different extension called "Block Image". Tunable Image Block filters by image data (vs pixelated) size Larger images can be off while retaining page sense.. possibly saving toggling on/off.. then again, some images appear partially. If you toggle it off, data setting tends to get lost. Workaround: install the "Block Image" extension as a toggle & be able to keep your setting for on mode. leaves an image frame outline. the space can be adjusted light/dark. doesn't block icons. It becomes difficult to get images back on, so I'm inclined to go with something else. I'd prefer an extension that blocks by pixel size.

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Ofek Aizik (ID: 0000003158f03b59) Voted 3 ★ - Updated 07/08/2022 Good but not perfect, its great that it can selectively choose what to show but the implementation of "ctrl hover" to show the image is less than ideal on sites with alot of picutres. The extension also breaks when it is used with the Bandwidth hero extension.

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Kyoto Kyoto (ID: 000000e7a38e53a7) Voted 5 ★ - Updated 06/13/2021 Хорошее расширение! Единственное замечание: как я понял, расширение (в некоторых случаях, и которые в 99% не должны случаться) отправляет данные через API https://images.weserv.nl/?url= , чем снижает приватность пользователя. Сервис имеет открытые исходники на github, и тем не менее, неплохо бы добавить опцию отключения. Это API, насколько я правильно понял, используется при нажатии на Ctrl и клике на картинку, чтобы сжать через этот сервис и загрузить облегченную версию картинки, пожатую в base64. UPD: Это происходит только если картинка по какой-либо причине не загрузилась (ошибка), чтобы подгрузить через стороннее API, как fallback. (Но я бы всё же вывел это в опцию) ==== Очень элегантно придумано: отлавливать картинки по Content-Length на этапе получения заголовков. Магия! ==== Nice extension! The only note: as I understand, the extension sends data (in rare cases, which in 99% must not occur) via the API https://images.weserv.nl/?url=, which reduces the end user's privacy. This service is open sourced on github, but nevertheless, it would be nice to add a "disable" option. As far as I understand, this API activated only when pressing "Ctrl" and clicking on a pic, and original image is faield to load (so it loads a lighter version of the image, in base64 format) ** This happens only if an img has not been loaded for whatever reason (an error occured), so it tries to load it from external API (sources are open), as a fallback. But I'd rather offered this through an option.