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What Does Your User Agent Say About You?

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A user agent is a computer program representing a person, for example, a browser in a Web context.

Besides a browser, a user agent could be a bot scraping webpages, a download manager, or another app accessing the Web. Along with each request they make to the server, browsers include a self-identifying User-Agent HTTP header called a user agent (UA) string. This string often identifies the browser, its version number, and its host operating system.

Spam bots, download managers, and some browsers often send a fake UA string to announce themselves as a different client. This is known as user agent spoofing.

The user agent string can be accessed with JavaScript on the client side using the navigator.userAgent property.

A typical user agent string looks like this: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:35.0) Gecko/20100101 Firefox/35.0".

(Source: Mozilla.org)

User Agent String

Browser Data

Firefox Android User Agent Override Android

author
David Lawrence
• Friday, 30 July, 2021
• 7 min read

To do so, simply visit our project on the Debate hosted instance, create an account and either select an existing language or add a new one to get going. This way it becomes much easier for me to keep track of reported issues and get back to you if additional information is needed to help you.

fennec override android nerven firefox versionen webseiten mobiler tablet dem mobile useragent general agent
(Source: www.bitblokes.de)

Contents

I noticed when switching user agents with the Phony extension that I had to do that (last checked a few versions ago). I noticed when switching user agents with the Phony extension that I had to do that (last checked a few versions ago).

I had skipped a few versions of Firefox, and on the last one I used phony didn't require a restart. It appears phony is working fine, it's Firefox that's broken.

I had skipped a few versions of Firefox, and on the last one I used phony didn't require a restart. It appears phony is working fine, it's Firefox that's broken.

Desktop sites look a lot better on Firefox for Android than the mobile versions, especially on tablets. Step 1: In the Firefox address bar, type “about:config” and press Enter.

Step 2: Tap the “Add a New Setting” button, then select “String” as the type. Screenshot by Ed Rhee/CNET Step 4: For value, enter the browser user agent string you want to use.

firefox cnet override useragent general android desktop request screenshot permanently setting always version rhee ed
(Source: www.cnet.com)

Firefox OS phones say Mobile “; the web is the platform. Rv: gecko version indicates the release version of Gecko (such as 17.0 “).

For other products based on Gecko, the string can take one of two forms, where the tokens have the same meaning except those noted below: Appname / app version indicates the application name and version.

The platform part of the UA string indicates if Firefox is running on a phone-sized or tablet device. When Firefox runs on a device that has the phone form factor, there is a Mobile; token in the platform part of the UA string.

The preferred way to target content to a device form factor is to use CSS Media Queries. This way, your code will work if/when Firefox ships on other phone/tablet operating systems or Android is used for laptops.

Firefox TV version Sergeant string v3.0Mozilla/5.0 (Linux; Android 7.1.2) Apple WebKit/537.36 (HTML, like Gecko) Version/4.0 Focus/3.0 Chrome/59.0.3017.125 Safari/537.36 From version 1.1, Firefox for Echo Show uses an user agent string with the following format: Some of them we have noticed are of the form Nelson; “, Reopen; “, or Open C; (note that putting space is also discouraged).

android firefox browser apps web mozilla google screenshot play fastest developer
(Source: play.google.com)

Firefox OS version numberGecko version number1.0.118.01.118.11.226.01.328.01.430.02.032.02.134.02.2372.544It's easy to find the correspondences by looking at the Mercurial repository names : repositories starting by mozilla-b2g are the release repositories for Firefox OS, and have both Firefox OS and Gecko versions in their names. The first two digits are owned by the Mozilla product team and denote versions with new features (e.g.: v1.1, 1.2, etc).

The third digit is incremented with regular version tags (about every 6 weeks) for security updates, and the fourth is owned by the OEM. Identifier preferences, (see the obsolete Sergeant Strings Reference).

In the past, specific plug-ins, add-ons or extensions added user agent parts to notify sites they were installed. The recommended way to do this, if it's absolutely necessary (remember that it slows down every request) is to set a custom HTTP header.

If you ever wanted to make your web traffic seem like it was coming from a different browser–say, to trick a site that claims it’s incompatible with yours–you can. This allows you to request web pages intended for different browsers–or even different devices, like smartphones and tablets.

Click the menu button to the right of the “Console” tab at the bottom of the Developer Tools pane and select “Network Conditions” If you don’t see the console at the bottom, click the menu button in the top right corner of the Developer Tools pane–that’s the button just to the left of the “x”–and select “Show Console”.

firefox browser android apps google play mozilla install
(Source: play.google.com)

On the Network conditions tab, uncheck “Select automatically” next to User agent. It only works while you have the Developer Tools pane open, and it only applies to the current tab.

To create the preference, right-click on the about:config page, point to New, and select String. You can find extensive lists of user agents on various websites, such as this one.

This setting applies to every open tab and persists until you change it, even if you close and reopen Firefox. Microsoft Edge and Internet Explorer have user agent switchers in their developer tools, and they’re nearly identical.

To open them, click the settings menu and select “F12 Developer Tools” or just press F12 on your keyboard. The developer tools will open in a separate pane at the bottom of the window.

You can find extensive lists of user agents on various websites, such as this one. It only applies to the current tab, and only while the F12 Developer Tools pane is open.

firefox external adds android support manager managers
(Source: techdows.com)

You can find extensive lists of user agents on various websites, such as this one. Chris has written for The New York Times, been interviewed as a technology expert on TV stations like Miami's NBC 6, and had his work covered by news outlets like the BBC.

It also adds a rider to that information which should hopefully make it clear to those paying attention that users are actually using Firefox, not Chrome. The Navigator ID.sergeant read-only property returns the user agent string for the current browser.

Also keep in mind that users of a browser can change the value of this field if they want (UA spoofing). Some Firefox extensions do that; however, this only changes the HTTP header that gets sent, and doesn't affect browser detection performed by JavaScript code.

Opera 6+ allows users to set the browser identification string via a menu. A Hamstring specifying the complete user agent string the browser provides both in HTTP headers and in response to this and other related methods on the Navigator object.

Other Articles You Might Be Interested In

01: My User Agent Info
02: My User Agent Javascript
03: Parse User Agent Javascript
04: Parsing User Agent String
05: Linux Firefox User Agent String
06: Linux Mail User Agent
07: List Of Browser User Agent Strings
08: My User Agent Info
09: My User Agent Javascript
10: Mac Os User Agent String
Sources
1 developers.whatismybrowser.com - https://developers.whatismybrowser.com/useragents/explore/operating_system_name/mac-os-x/
2 www.howtogeek.com - https://www.howtogeek.com/211961/HOW-TO-CHANGE-SAFARIS-USER-AGENT-IN-OS-X/
3 developer.mozilla.org - https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent
4 deviceatlas.com - https://deviceatlas.com/blog/list-of-user-agent-strings
5 discussions.apple.com - https://discussions.apple.com/thread/250855091
6 developer.chrome.com - https://developer.chrome.com/docs/multidevice/user-agent/
7 developer.mozilla.org - https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent/Firefox
8 useragentstring.com - http://useragentstring.com/pages/useragentstring.php