Open in Browser

Offers the possibility to display documents in the browser window.

Open in Browser - View Documents Directly in Firefox

"Open in Browser" is a convenient Firefox add-on that simplifies viewing files by allowing users to open documents directly within their browser. The extension is designed to bypass the irritating download popup that requires you to choose a separate application to view a file. For the most seamless experience, this enables users to continue browsing without interruptions. Compatibility limitations apply if servers do not specify an explicit Content-Type header.
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Add-on stats

By: Rob W
Users: 2,139
-2
Rating: 4.32
(41)
Version: 2.11 (Last updated: 2020-01-08)
Creation date: 2008-07-20
Weekly download count: 21
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood:
Low risk likelihood
Manifest version: 2
Permissions:
  • history
  • menus
  • sessions
  • storage
  • tabs
  • webNavigation
  • webRequest
  • webRequestBlocking
  • <all_urls>
Size: 1.25M
URLs: Website

Ranking

# 1,975 ▲ 5
Other rankings
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Other platforms

Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary

Analyze keywords

Have you ever been annoyed when you wanted to see a document and the download popup appears which forces you to select an external application to view it?

This extension allows you to open the document directly in your browser.

Version 2.0 and later is rewriten using the WebExtensions API. A limitation is that the extension is not able to detect the type when the server does not specify an explicit Content-Type header. In this case, the extension will show the dialog even when it should not be shown. If you would rather see too few dialogs than too many, select the "Open with Firefox" option and remember the choice.

You can always force an "Open in Browser" dialog to be shown by using the "Tools" > "Open in Browser" menu.

Manual configuration after installation (updated again in version 2.7, July 2018): After installing the extension, saving a file can require two confirmations because of browser limitations. To avoid this unnecessary second prompt, follow the following instructions, visit the add-on's preferences page, enable the "Never ask to confirm "Save File" action" option and follow the instructions.

(In version 2.4 until 2.6, a different instruction was shown. To clean up, visit about:config and reset the browser.helperApps.neverAsk.saveToDisk preference.)

If you use Firefox 56 or earlier, install Open in Browser version 1.18.

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Extremely handy for opening various file types directly in Firefox without saving them first.
  • Allows users to inspect YAML files without downloading them, which is a significant benefit.
  • Works reliably for specific types of files like PDFs and XML.
  • Helps avoid unnecessary file storage by enabling direct opening in the browser.
Cons
  • Does not reliably open certain RSS feeds or PDFs, often leading to a repetitive preview pop-up.
  • Has issues with full-screen mode on Mac OS, affecting usability.
  • Inconsistent behavior with different file types, such as DOC and CSV files, often leading to wrong MIME type handling.
  • User interface for managing file types can be confusing and unresponsive, leading to frustration among users.
Most mentioned
  • Issues with specific file types not opening correctly or at all (e.g., PDFs, RSS feeds).
  • Confusion regarding the settings and functionality of the add-on, especially in changing MIME settings.
  • Reliability problems in different operating systems and modes, particularly Mac OS in full-screen.
User reviews
i can't seem to get this addon to work on some type of rss feeds (extensionless rss file, with application/rss+xml type. can't set "open with firefox/librewolf" for that one in settings either). forcing the addon to be "enabled for all requests" still only opens the generic save dialog, and doesn't show this addon's options in regular window (but it ironically works fine in private window, however even using that to make it work doesn't help in regular browsing, despite being present in 'your saved MIME actions', not to mention my rss feed doesn't work in private browsing either, so i can't use that).
by yarrmateys, 2025-01-15
ótima extensão, evita de ter que baixar um arquivo que não seja necessário armazená-lo
by Souzah, 2024-09-25
by Firefox user 18535499, 2024-08-03
View all user reviews

Add-on safety

Risk impact

Open in Browser requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

Open in Browser has earned a fairly good reputation and likely can be trusted.

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