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After a difficult weekend in which browser extensions stopped working in Firefox, the popular browser is trying to get itself together so people don't have to suffer during the work week.

An update came early Monday morning that should theoretically fix the issue, which, according to the Firefox bug report site, was caused by an expired certificate. (Just like in Google Chrome, plenty of Firefox users rely on optional extensions to make their web surfing experiences more tolerable.)

SEE ALSO:How to fix Gmail's cluttered design with a simple Chrome extension

In a post on the Mozilla blog, the browser maker said version 66.0.4 should resolve the issue.

The seemingly small infrastructural problem meant that people who relied on things like ad blockers to browse the web were forced to use Firefox without them (or switch to another browser entirely). This, of course, led to complaints on social media.

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Tweet may have been deleted

Tweet may have been deleted

"We are very sorry for the inconvenience caused to people who use Firefox," the blog post read.

One thing to note is that this update only applies to version 66, the current build of the Firefox browser. Some people choose to use older iterations due to personal preference, but it seems those people will be left behind by this update. They may need to update to the current version or start using another browser.

This isn't the first time in 2019 that internal changes to a popular service have left some people in the dust. Google made API changes earlier this year that killed off a great deal of support for the productivity-focused app IFTTT within Gmail. Thanks to those changes, some people who had set up Gmail commands to make their lives easier suddenly had to find alternatives.

Firefox's issues this weekend happened on a much larger scale, but at least Firefox was able to issue some kind of fix by the start of the week.

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