

Apps or Scripts are Broken in Chrome / Edge 100 and Later Versions You can find the details in following article: To handle similar websites compatibility issues, both browsers provided solutions or workarounds to fix broken websites. The same thing happened when Google Chrome and Microsoft Edge browsers reached to version 100. Either the website will not open and display error messages or might not work properly and you’ll face lots of browsing issues while visiting the website. If a website server software or an app was not designed or upgraded to understand 3-digit browser versions in the Useragent string, the app or website might become broken in the 3-digit browser versions. You can check the installed Firefox useragent string using abut:support URL in the address bar or using select Help -> More troubleshooting information option from Firefox main menu as shown in following screenshot: You see the version number has been increased from 2-digit to 3-digit in the UA string and this is the thing which can prevent some websites from opening or working in Firefox 100 and later versions. Now the newer versions of Firefox such as version 100 will use following useragent string: You can see the above mentioned useragent string tells servers that the used Firefox version is 99. For example, following is the useragent string used by Firefox older versions: Useragent is a string of alphabets and numbers which is used by web browsers so that servers can identify them. Since the version number of Firefox has been increased from 2 digits to 3 digits, the Useragent string (UA) used by the browser now also contains a 3-digit number instead of the previous 2-digit number. Recently Mozilla released version 100 of its popular web browser “Firefox”. If you installed or upgraded to Mozilla Firefox 100 or later version and some websites are having browsing issues with the new version of Firefox, this article will help you in fixing the issue and opening the broken websites in Firefox 100+ versions.
