

ironFox principally
Curious why?
I took a brief look and found some experience breaking changes like no dark mode and a general don’t do this since it can be a privacy risk even at the cost of speed which firefox has not been known for ages.
Some points which I observed:
-
Dark Reader is known to be incompatible with IronFox’s changes and will cause significant breakage/slowdowns.
-
Dark mode for websites is disabled due to resist fingerprinting. Please do not disable RFP.
-
IronFox disables the JavaScript JIT to increase security at the cost of slowing down webapps, complex websites, and the PDF viewer. Navigate to
about:config
and changejavascript.options.ion
andjavascript.options.baselinejit
totrue
to restore their performance, though this is not recommended. -
IronFox has strict certificate revocation checks. The CA revocation servers are occasionally down/blocked/inaccessible, so you may see a “Secure Connection Failed” error from time to time. Navigate to
about:config
and changesecurity.OCSP.require
tofalse
, this is however a security and privacy risk. -
IronFox requires safe renegotiation for connections. Certain websites do not support this and will result in a “Secure Connection Failed” error. Please report these errors to the impacted websites. You can navigate to
about:config
and setsecurity.ssl.require_safe_negotiation
tofalse
to disable the requirement for safe renegotiations, this is however a security and privacy risk -
IronFox has stripped referrers. This often breaks loading of images on websites with hotlink protection. Navigate to
about:config
and changenetwork.http.referer.XOriginPolicy
from2
to1
(or0
if you’re still having issues), this is however a privacy risk. -
IronFox has visited link highlighting disabled by default. Navigate to
about:config
and changelayout.css.visited_links_enabled
totrue
if needed, this is however a privacy risk
You could consider sending feedback to kobo devs. They could make the install process simpler.