Sigh, such probs can have so many reasons...
For example some usual-suspect prefs can be checked in Help>Troubleshooting info (note this can NOT check errors, it only gives people some ideas where to start looking) Many sites and cross-domain-scripts like reCaptcha require for example that
all cookies are allowed, not just their own, and need referers allowed etc.
And adblockers can cause unexpected probs, script blockers, routers, or blocking 3rd-party tracking domains in hosts file etc.
One of the biggest probs is Google's near almighty monopoly today, they can meanwhile play all sorts of evil tricks on unsuspecting users. Not only the search engine anymore, but far more, incl. youtube and omnipresent gmail of course, and omnipresent recaptchas, on mobile phones Android, they can just do whatever they want, and kick out whomever they want. For example have read that youtube is now sending crappy video quality to users with
XP in their useragent string (NT5.x). Obviously because all users shall be forced to the latest OS, with a maximum of spying tools. Simply faking the UA was reported to 'fix' it.
And in general Google tries to push their Chrome browser to as many people as possible, also including evil tricks. Making it look as if other browsers had mysterious bugs, when in reality it's just Google tweaking their sever scripts to fully work only when a
CHROME useragent string is used. A most recent one of course. Meanwhile Gecko browsers would need not only a Firefox compat mode, but also a Chrome mode!
For even deeper faking of the useragent string, there's even a dedicated OperatingSystem pref:
"general.oscpu.override" = "Windows NT 6.1" (empty=default, would use Win7 or younger)
And
reCaptcha is the worst. Especially everywhere, not just on Google's own sites! Last year there were some things revealed in the Palemoon forum which were just incredible. Dimly remember that with a Chrome useragent string people were given far fewer annoying images to click, compared to other browser strings. And 1-2 people even said it helps to wildly move the mouse around, like crazy, because google wants to collect mouse movement patterns for AI training or such. And short, direct mouse movements are also taken as indicator for non-humans...
Edit: Link to Captchas Hell:
https://forum.palemoon.org/viewtopic.php?f=3&t=19044
And several users have lately confirmed that changing their IP-numbers helped (restart router, browser, clear cache etc.) But again, Google only gave them this prob in combination with useragent sniffing.
And it can also be helpful to watch the background traffic, to figure out what might be blocked or broken. For example using
addons LiveHTTPheaders or HTTPFOX:
https://addons.mozilla.org/en-US/firefox/addon/httpfox/
Installation in KM may require to toggle some prefs, but that's another complicated topic. For starters: right-click and download xpi-files to disk, then use File>Open or drag them into an open "about:addons" window.
After installation and restart open in the browser this URL: chrome://httpfox/content/HttpFoxWindow.xul
Usable as bookmark, or install the little menu macro from
http://kmeleonbrowser.org/forum/read.php?9,131134
Attention ADDONS:
On
October-5 Mozilla will DELETE all traditional Firefox addons, which work in other gecko forks too, in K-Meleon, Palemoon, Seamonkey etc., and in all Firefox versions older as 1 year. Except dictionary addons or similar.
If someone wants FF-addons for K-Meleon in the future, they must be downloaded NOW
All real Firefox addons will vanish. Mozilla now allows only Chrome-type addons, because those are far less powerful, have read they are not even allowed to create buttons to block javascript or other important prefs anymore.
Edited 1 time(s). Last edit at 08/24/2018 08:07AM by siria.