Prevents pages from loading; clearing cache is the only fix

[j-culbertson]

I hate to reopen an old case, but I actually still have this exact problem and other than clearing the cache, I can't seem to figure out a fix. (see #1985 for reference)

Hardware: Dell Precision 5560
CPU: Intel i7-1180H 2.3GHz
GPU: Nvidia T1200 / Intel UHD
RAM: 32GB
Multi-Account Containers Version: 8.0.7
Operating System + Version: Windows 10, 21H2
Firefox Version: 99.0.1 (64-bit)
Other installed Add-ons + Version + Enabled/Disabled-Status: None

It seems terribly random for me. I might browse in various tabs for hours without issue, but then I will go to search in the bar or click a link and it wont work at all. Other times, it will happen within 5 minutes of opening the browser. Actually, in the time I wrote this post, I opened another tab (default, no container), and it wouldn't load the search. For a while I can get around this by using another container the same way that @jjames2 describes, but eventually all of my containers "break" and I have to flush the cache.

I have refreshed and reinstalled firefox but neither have made any noticeable difference. I have uninstalled and reinstalled the multi-account container add-on, but that has not helped either. The only thing that works for me is to clear cache for the last hour +. Any ideas would be greatly appreciated!

Originally posted by @j-culbertson in #1985 (comment)

[Flimm]

I have the same issue. The only thing that fixes it for me is to disable the add-on Firefox Multi-Account Containers.

[JamieKitson]

I have the same, or a similar issue. It appears to only happen to my Logged into Google container. Sometimes the container just stops working, it just will not load web pages on any of its tabs until I restart Firefox. If I look in the networking tab of the dev tools I can just see the request headers, nothing else. It would be good to know what I could do to debug this.