2017
FIR 57 - ADDON - uBlock Origin - uBO/webext - Read carefully if using uBO/webext
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.
2013
CSS / Javascript : Browserhacks : Lst of browser specific CSS and JavaScript hacks
by 3 othersBrowserhacks is an extensive list of browser specific CSS and JavaScript hacks from all over the interwebs.
How to?:
Pick the hack you want
Copy it into your stylesheet
Add the style you want between the braces
Enjoy the new styles for the browser you targete
1
(2 marks)