Google and Mozilla Chrome and Firefox version 100 are ready to break some websites

Chrome, Firefox and Edge are all set to hit version 100 in three releases that could break some websites. Switching to version 100 in the coming weeks may cause errors or compatibility issues with some websites that are not ready to read the three-digit user agent strings. Google, Mozilla and Microsoft are busy trying to prevent major issues.

Mozilla, Google and Microsoft have been warning for months about the upcoming version 100 release, which will be dropped for both Chrome and Edge in March, followed by Firefox in May. Both Mozilla and Google are conducting tests to test websites and report breakdowns. There is one List of running issuesIt’s very small now, and Engadget Notes Notable sites affected include HBO Go, Bethesda and Yahoo.

“When browsers first reached version 10 12 years ago, Several issues were found The key version number was changed from one digit to two by parsing user agent libraries, ”explains the Web Developers Group. On the Mozilla blog. Similar to the infamous Y2K bug that some computers have not been able to distinguish since the 2000s and 1900s, browser agent strings have different formats, and “some parser libraries may have hard-coded assumptions or errors. The account is a three-digit key version number.”

Despite concerns about some websites crashing, a lot of hard work is going on behind the scenes – like avoiding the major headache caused by the Y2K bug 22 years ago – to smooth the transition to version 100. Developers can run a special flag on current versions of Chrome, Edge and Firefox, reporting browsers as version 100 and assisting with test sites.

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There are also plans if there are widespread issues. Mozilla says it will repair broken websites or temporarily disable major version 99 of Firefox. Google’s backup plan is to use a flag to disable the major version in 99, and Microsoft does not describe the backup plan as far as we can tell.

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