User agent sniffing is the practice of websites showing different or adjusted content when viewed with certain user agents. There are 26 popular user agent strings to choose from. There are 26 popular useragent strings to choose from. For example, the default user agent entry for firefox 72 on windows 10 64bit would appear as. The ua string of firefox is broken down into 4 components. The following table contains user agent strings for all the most used mobile browsers today. Find lists of user agent strings from browsers, crawlers, spiders, bots, validators and others. In the user agent request header field, amazon silk sends one of three user agent strings, depending on the view requested on the device by the customer. Below is a list of all the most common web browser user agent strings. To enable this functionality you can add additional supported user agent strings to the adfs configuration.
So two strings can be taken as representative of the debate. For example, if a website knows youre using chrome, it will load a chrome optimized version. Whenever a web browser or almost any makes an or s connection over the internet as your web browser does but some software program do as well the web browser or program identifies itself and provides information about itself via the user agent. Mar 15, 2020 download useragent switcher and manager for firefox. Dec 06, 2018 list of mobile browsers user agent strings.
How to change the user agent string in microsoft edge, chrome. When viewed with internet explorer 6 or newer, more functionality is displayed compared to the same page in any other browsers. May 08, 2018 the user agent string will be changed on the current tab and remains only active when the developer tools are kept open. For example, if a user s product were called wikibrowser, their user agent string might be wikibrowser1. Toolbar popup ui provides an easy interface to access 26 useragents. How to change your browsers user agent without installing an.
How to change user agents in chrome, firefox and edge. Of course this requires using a device detection solution which. Its particularly important to understand that the string can change quite a bit depending on if youre on a phone, on windows, windows 64 bit, a mac or any. The browser is developed by mozilla foundation and renders web pages using the gecko engine. Download useragent switcher and manager for firefox 0. Jan 12, 2010 as of opera 9, there are two ways to change the useragent string. An example of this is microsoft exchange server 2003s outlook web access feature. User agent string has wrong windows nt version firefox. Useragent detection, history and checklist mozilla.
Weve got 7,565,209 chrome user agents in our database. The extension uses a twofactor technique to mimic your default useragent string, which is the most reliable method 3. Browsers let you change your user agent from its console. User agent strings of mozilla firefox web browser allow web sites and web servers to identify which browser visitors used to browse the web page, and typically together with such as the application name, version, host operating. Jan 16, 20 look for user agent and uncheck the box next to select automatically to reveal all user agent options in chrome. For instance, when using thunderbird to retrieve and manage the user s emails, thunderbird is the user agent. If you arent familiar with the developer console, you can instead opt for an extension or. Note that this string will change depending on the user environment, platform and architecture. Look for user agent and uncheck the box next to select automatically to reveal all user agent options in chrome. This is what the user agent string will look like for firefox 4 on 32bit windows. One way is to identify it as another browser, either firefox or ie.
Oct 23, 2018 updated for 2018 a list of user agent strings for the most popular devices in use today. The user agent string format is currently specified by section 5. Sep 12, 20 some companies will be using the user agent string as an identifier for bypassing a paywall or offering specific content for a group of users during a marketing campaign. Download whole our database of 27,894,022 user agents. Firefox also shares the ability to change the user agent. Jan 11, 2019 how to change the user agent string in microsoft edge, chrome, firefox, opera, internet explorer or safari. User agent strings per browser, operating system, device, brand and plugin. Google to phase out useragent strings in chrome slashdot. Second row is for desktop useragents and third row is for desktop operating systems. Camino user agent strings camino firefox based browser for mac os x. If you want, you can change your browsers user agent to mac or windows. Our latest chrome user agent page will show you the user agents for the most recent versions of chrome. Useragent detection, history and checklist mozilla hacks.
To revert firefox to the default user agent, rightclick the general. The latest user agents for firefox on the various platforms it runs on. You can easily set custom useragent strings from the toolbar popup 2. The user agent tells the server what the visiting device is among many other things and this information can be used to determine what content to return. There are quite a number of addons for firefox that let you modify the user agent. The user agent string is a littleknown line of information with a very big impact on how browsers see the web. Just in case you feel this is a website problem, i attached another screenshot from about. Mar 17, 2020 download user agent switcher and manager for firefox switch your default browser user agent string to another one of your choice from a long list of user agent strings that cover the majority of. To view your user agent, click the firefox menu button, click help and select troubleshooting information.
The ua string of firefox itself is broken down into four components. Stack overflow understanding user agent strings internet explorer latest user agent strings. The extension does not use any resources when it is not spoofing the useragent 4. Final user agent string for firefox 4 mozilla hacks the. Microsoft edge and internet explorer to open them, click the settings menu and select f12 developer tools or just press f12 on your keyboard.
Useragent switcher get this extension for firefox enus. Useragent switcher can quickly and easily changes your browsers useragent. You can still take a look, but it might be a bit quirky. Explore our huge user agent listing, download our user agents database, or you can search it if youre curious about other user agents. Select an optional user agent from the dropdown menu to activate that user agent in chrome. Note that uas used by mobile browsers vary depending on the browser version, device model, os, and many other factors. The user agent switcher extension adds a menu and a toolbar button to switch the user agent of a browser. Download useragent switcher and manager for firefox switch your default browser useragent string to another one of your choice from a long. List of mobile browser useragent strings deviceatlas. User agents exist on the clientside of the network transaction. A browsers user agent string ua helps identify which browser is being used, what version, and on which operating system.
Sep 09, 2010 this is what the user agent string will look like for firefox 4 on 32bit windows. As of opera 9, there are two ways to change the useragent string. This is the default user agent string for the default web browser on fluxbuntu 7. When feature detection apis are not available, use the ua to customize behavior or content to specific browser versions. Changing user agent for firefox web browser tech journey. Remove cpu architecture from the windows and unix user. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. Clicking on any ua, will change your browsers user agent after reload.
I propose that win64 and wow64 firefox use the unadorned windows useragent already used by firefox on x86 and aarch64 windows. The user agent string will be changed on the current tab and remains only active when the developer tools are kept open. When you open the other option from the user agent menu then, youd simply type of copy the user agent string for the browser you want to test. Spoof websites trying to gather information about your web navigationlike your browser type and operating systemto deliver distinct content you may not want. There is no conventional way of writing a user agent string as different browsers use different formats and many web browsers load a lot of information onto their user agents. With the two mostpopular web browsers ready to drop new versions within the next couple of months, youre going to have to adjust a few twiddly bits on your website if youre sniffing user.
Weve got 518,314 safari user agents in our database. For a breakdown of changes to the string in gecko 2. How to change the user agent string in microsoft edge. A searchable database of interesting useragents search engine spiders, crawler, robots. Our latest safari user agent page will show you the user agents for the most recent versions of safari. For more details on firefox and gecko based user agent strings, see the firefox user agent string reference. In computing, a user agent is a piece of software acting on behalf of the user. The application basics section will include a user agent entry. Mar 01, 2015 in computing, a user agent is a piece of software acting on behalf of the user. Stack overflow understanding useragent strings internet explorer latest user agent strings. Currently, the user agent strings have become overly long. Curl set user agent command on linux or unix nixcraft.
How to change your user agent in mozilla firefox or opera. Theres also a text file you can test against, with a large set of ua strings for new and old versions of firefox and other geckobased browsers. See also this document on user agent sniffing and this hacks blog post. Change user agent with curl to get url source code as. When using this option, the useragent string changes to look just like the corresponding one for firefox or ie, with the addition of the string opera and operas version number at the end. Google has announced plans today to phase out the usage of useragent strings in its web browser chrome.
The primary use case for including cpu architecture and os version in the useragent string is to allow software download sites to offer compatible software. I believe that an ml approach could provide a strong baseline that would be able to categorize and classify both existing user agent strings and ones that havent come into existence yet, giving a confidence score that can be used to determine. Updated for 2018 a list of user agent strings for the most popular devices in use today. Download whole our database of 23,404,126 user agents. All popular browsers offer builtin user agent switchers, so you can change your user agent without installing any extensions. The xulbased user interface used by most mozilla based applications has been replaced with a native cocoa interface click on any string to get more details camino 8. Get an analysis of your or any other user agent string. How to change the user agent string in microsoft edge, chrome, firefox, opera, internet explorer or safari.
If a specific view is not requested, the view defaults to tablet for fire tablets, and mobile for fire phones. This is a listing of only some of the most popular ones. Regex tester isnt optimized for mobile devices yet. A single bulk lookup request can accept up to 100 useragent strings. This document describes the user agent string used in firefox 4 and later and applications based on gecko 2.
Udger database includes detailed information about every single user agent and operating system. Windows, mac, linux or android, and whether or not its a mobile phone. Firefox 60 statistics list of firefox 60 user agent strings myip. Ua strings have been developed part of the netscape browser in the 90s, and have been in use ever since. This user agent string belongs to firefox browser running on mac os x. Aug 04, 2017 in fact, this information can actually give you a better browsing experience. A warning will appear, but it is quite safe to proceed, providing you dont change settings or flags without due care and attention. Browsers automatically detect and build your user agent but, you can fake it. Clicking on any ua, will change your browsers useragent after reload. We recently discussed the benefits of a user agent switcher and how it can enhance your browsing experience. Jun 11, 20 learn how to change the browser agent on three of the most popular browsers out there. Final user agent string for firefox 4 mozilla hacks. In old versions of chrome, you can change the user agent as follows.
For instance, when using thunderbird to retrieve and manage the users emails, thunderbird is the useragent. How to change your browsers user agent without installing. A single bulk lookup request can accept up to 100 user agent strings. Os detection how to detect my browser version and operating system using javascript. Our web browseroperating system version numbers api endpoint will provide you with the latest user agents for all sorts of popular web browsers and operating systems.
The first row in the panel ui is for mobile useragents. For more on firefox and geckobased user agent strings, see the firefox user agent string reference. Note, however, you can only have one other user agent at a time. List of firefox 60 all available firefox 60 user browser agent strings. Lets discuss now how to change it on apple os xs safari. How to change the user agent in safari, chrome and firefox. If you ever wanted to make your web traffic seem like it was coming from a different browsersay, to trick a site that claims its incompatible with yoursyou can. Afterwards, the new user agent will appear in the user agent menu. How to reset the default user agent on firefox firefox help. Sep 30, 2010 i believe that an ml approach could provide a strong baseline that would be able to categorize and classify both existing user agent strings and ones that havent come into existence yet, giving a confidence score that can be used to determine whether that classification should be used in analysis. Oct 05, 2018 firefox also shares the ability to change the user agent.
I guess they are trying to get through user agent sniffers that sniff for firefox instead of gecko. Understand what information is contained in a user agent string. Click the overrides tab to find the user agent options, select a user agent out of the pulldown menu, modify an existing one, or enter a new user agent chrome also instantly redraws pages with the new user agent, and if device metrics are set it will also use that devices set resolution size when redrawing the page. Mar 09, 2020 user agent switcher can quickly and easily changes your browsers user agent. There are millions of valid useragent strings out there, so keep in mind that using a custom string is usually an option in the case that the presets dont offer what youre looking for.