screenshotMOBI Reader  |  Download View MOBI files right in your browser, in a popup window.

Some of the important features of the MOBI Reader addon are listed below. This is followed by an overview of this addon. This summary contains few words about the addon, its function, and its features. Next is FAQ, this section is useful to get information about how this addon works in your browser. If you couldn't find a specific answer, please fill the bug report form on this page or the contact form on the homepage to let us know about your question. Following the FAQ, is the bug report form. It is designed to collect user feedbacks and bugs about this addon. Users can suggest improvements or feature requests through this form too. The next section is for submitting comments about this addon which uses the Facebook comments plugin. The last section is dedicated to reports submitted through the GitHub website. We hope the information provided on this page, could help you get all the basics you need about this addon and enable you to have a better experience with MOBI Reader.

In short, MOBI Reader is an addon that let you view any mobi document (online/offline) inside your browser and in a separate popup window. Please check the YouTube tutorial below to get an idea of how this addon works in your browser. If you want to contribute to the developement of this addon, please fork it on GitHub, and push your changes to a named branch. Moreover, you can review all the comments made on GitHub commits.

5 Reasons to Use MOBI Reader

  • Allows you to view mobi document inside your browser.

  • Supports both online and offline documents.

  • Has several view options for the mobi document.

  • Uses an open-source JavaScript library called mobi.js for rendering mobi documents.

  • Available for all browsers and platforms (windows, Linux, and mac).

YouTube Tutorial

This video gives you an idea of how the extension works in your browser.

Matched Content


  • A MOBI document is a file that is in the MOBI format (a new format for e-books). MOBI files are commonly used for e-books that are read on Kindle devices. They are typically created from HTML or other markup languages and can include features such as text, images, and links. MOBI files are designed to be easy to read on a variety of devices, and they can be opened and read using a variety of applications.

    MOBI is a proprietary format for e-books that was developed by Mobipocket, a company that was acquired by Amazon in 2005. MOBI files are based on the Open eBook standard, which is an open standard for electronic books developed by the International Digital Publishing Forum (IDPF). MOBI files are similar to other e-book formats, such as EPUB, but they are designed to be optimized for reading on Kindle devices. They contain various elements, such as text, images, links, and other types of media. They can also include metadata, such as the title and author of the book, as well as other information that can be used by software programs to manage and organize e-books. MOBI files are typically created from HTML or other markup languages using specialized software, such as KindleGen, which is a tool provided by Amazon for creating MOBI files. In addition to being used for e-books, MOBI files can also be used for other types of content, such as documents, magazines, and comics. They can be opened and read using many applications, including Amazon's Kindle app, which is available for a variety of devices, including smartphones, tablets, and computers. MOBI files can also be used using other e-book readers, such as the Calibre software program, which is available for Windows, Mac, and Linux.

    MOBI documents have several advantages over other e-book formats. For example, they are optimized for reading on Kindle devices and can include many features, such as text, images, and links. On the other hand, MOBI files also have some disadvantages. For example, they may not be compatible with all devices and applications (which can can limit the ability of users to access and read MOBI files) and also, they are not as widely supported as other e-book formats, such as EPUB. Additionally, MOBI files may not support all of the features and capabilities available in other e-book formats. For example, they may not support all of the metadata, formatting, and layout options, which can limit the ability of authors and publishers to create high-quality e-books. Finally, MOBI files may not be as well-suited for books that include complex layouts, multimedia elements, or other advanced features. The MOBI Reader addon allows you to easily open and view MOBI documents in your web browser. For more information about this addon, please see the FAQ section below.

Frequently Asked Questions

  • 1. What is MOBI Reader?

    MOBI Reader, is a simple and powerful add-on that can open any document with a mobi (or kindle) file extension. Please right-click on any mobi link and then click on the - View MOBI - item from the context menu. Alternatively, you can open the popup window and then add the mobi link in the UI to view the document. For offline files, simply drag the file to the designated area in the popup in order to load the mobi document. This add-on has a dark mode to better read mobi files at night time. Moreover, you can resize the window to your desired size and the document will adapt itself to the new size. Please read the following to get more info about MOBI Reader add-on.

  • 2. How can I work with this addon?

    In order to work with this addon, simply right-click on any mobi link, then click on the - View MOBI - item in the context menu. Please note that you can only select ".mobi" and ".kindle" file extensions. If you have a mobi file in your machine and want to view the file, simply drag & drop it in the UI (top right section). The addon will load the file from your machine and renders it the UI. In the top toolbar, there is a dark mode button, please press on this button to switch the UI to dark style. The dark mode is very useful for reading documents at night time. If you want to hide the top toolbar, please press on the - UP - button on the top right corner in the UI. Likewise, if the toolbar is hidden and you want to show the toolbar, please press on the - DOWN - arrow button. There is also a print button at the top toolbar in case you want to print the document or export it to a PDF file.

  • 3. How can I download the source code for MOBI Reader?

    To download the source code for this extension from Chrome Web Store, it is recommended to use Extension Source Downloader. With this addon, you can download the source code as a ZIP or CRX format to your machine. If you want to download the source code from the Firefox addons store, please open the firefox download link (if available) in the Firefox browser and then right-click on the - Add to Firefox - button and select - Save Link As... - item. Choose the destination folder on your machine and then save the file in XPI format. You can then rename the XPI format to a RAR or ZIP file. Some extensions may have a GitHub repo address, which you can use to download the source code as well. But, it may not be the latest version of the addon. Therefore, downloading the source code from the official web stores is the best option as it always gives you the latest version of the addon.

  • 4. What is MOBI?

    MOBI is a new e-book file format for viewing online or offline documents. MOBI file format is designed for Kindle devices and created by Amazon company. It is based on an open ebook standard and is using XHTML for file formatting. Currently, modern browsers do not support MOBI by default. Therefore, this addon can be very useful if you dont want to install third-party software to view MOBI documents. Please read this Wikipedia page to get more info about various e-book file formats including ".mobi".

  • 5. What API/engine is behind the rendering process?

    This add-on uses an open-source javascript library called mobi.js. It works in all modern browsers on desktop and mobile machines.

  • 6. Are there any options or settings to adjust in this addon?

    There is not a separate options or settings page for this addon. All the settings required to operate with this addon is available in the toolbar within the app UI (top section).

  • 7. How can I change the MOBI view?

    Unfortunately, currently there is no way to change the view or formatting of the UI. There is only one option to change the font size in the top toolbar. Moreover, as mentioned above, you can switch the reader to a dark style or back with a button at the top toolbar.

  • 8. Can I convert MOBI to PDF with this addon?

    In order to convert the MOBI file to PDF document, please press on the print button at the top toolbar. Once the print UI appears, please choose the PDF writer as the printer. Then, click on the print button to save the file as a PDF document. Depending on your computer and browser version, you might see different options as the printer in the printer UI.

  • 9. Is this addon available for mobile browsers?

    Yes, this addon is available for both mobile and desktop machines in all operating systems (Windows, Linux, and Mac).

  • 10. How can I disable this addon?

    In order to disable this addon, please head to the extensions tab and then click on the disable button next to addons name.

  • 11. Where can I find the privacy policy for MOBI Reader?

    Please read the privacy policy for this extension here.


Reporting Bugs

Your feedback goes a long way towards making this addon even better. With this feedback and bug report form, you can report bugs or suggest features/enhancements for the functionality or performance of this addon. Please note that this form will be sent to the developer(s) of this addon. You will not get an immediate or personal response at the moment. However, the developer(s) may contact you through the email address provided in this form for further clarifications or to request additional information regarding the reported bug(s).

If you want to rate or write a review for this addon in the official webstore, please press the - Rate this addon - button below.

Please enter the name of the extension (addon).

Please enter the current version of the extension.

Please be as specific as possible. Basically, describe what happened, what you were doing when it happened, and why you think it is a problem.

Describe the step-by-step process required to reproduce the issue you are reporting. Be specific when describing these steps by providing as much detail as possible.

Please try to leave a link to a screenshot for the specific bug or error report.

Please enter your operating system.

Please enter your browser and its current vesrion.

Please enter your email address.

Reviews | Discussions

Please note: keep these reviews/discussions clean, and avoid the usage of derogatory or inappropriate language or terminology in references to individuals or groups based on race, national or ethnic origin, color, religion, age, gender, etc. Do not submit bugs in your reviews, use the above bug-report section instead. Also, never post any personal information in these reviews.

GitHub Issues | Fork me on GitHub