PUBLIC MARKS from decembre with tags compatibility & multi-process

FIR 57 - ADDON - uBO/webext works best with Firefox 57 and above, and with multi-process enabled. There are many reports of people experiencing issues with some web sites, or images not loading, etc. Turns out many of these are a result of using some legacy extensions along uBO/webext. For instance, Reek's AAK in GreaseMonkey has been causing issues with images not loading. If you experience such issue, you will have to disable all your legacy extensions and see if this fixes your issue. If so, then you will have to re-enable your legacy extensions one by one to find the one(s) causing the problem. Those legacy extensions can cause multi-process to be disabled in your browser, and apparently when multi-process is disabled, this can cause many cases of page load failure.