Installing unsigned add-on to Firefox 52.9.0

It can be installed but, the jerks at firefox claim its not verified or some such reason. One of the settings in "about:config" or maybe more need changing. Careful there.

1.17.4 is the version I use, :) "thank Liz!!"
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Go here:

https://github.com/gorhill/uBlock/releases/tag/1.17.4

Go to bottom of page:

uBlock0.firefox.xpi <- click (for Firefox XP)

I got a <drop down box> "github FF prevented this site etc etc" click allow -> screw 'em!

Installs but is disabled -> screw 'em again!

Type "about:config" on address bar NO QUOTES! If you have never done this you'll get a warning your computer might burst into flames or some such (!!)
(cant see it very well, so, about:config , colon, not semi-colon)

Type this: "xpinstall.signatures.required" (again no quotes) in the search box

Toggle value to "false" (highlite - right-click - toggle)

Open 'tools' -> Add-ons -> Addons Manager, its probably disabled, click -> enable.
(what can I say, screw 'em yet again!)

There you have it, , , ,

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Click to expand...

Try this, , ,
 
Thanks all.
Tried the above suggestions. They work, but unfortunately only last for one Firefox session. Unless I did something wrong, every time you restart Firefox, the unsigned .xpi file is disabled and you have to go through the same procedure of:
about:debugging>‘Load Temporary add-on’ option and reselect the XPI file for the add-on.
I tried about:config>xpinstall.signatures.required>Toggle value to "false" but it had no effect.
Apparently after Firefox 48, the developers removed this hack allowing installation of unsigned add-ons.
Anyway, am glad to have found a forum still promoting Win XP/SP3.
I am currently running it on an Intel Quad core Q6600 @ 2.4 GHz / Asus P5B with 8GB RAM, although since it's the 32bit version, I'm only seeing 2.93GB.
Saw a PAE hack on this forum to allow it to see the full 8GB, so will give it a go to see if I can get it to work.
https://www.xpforums.com/threads/guide-to-enable-windows-xp-to-use-more-than-3-25gb-ram.932418/

PS. does anyone know, of the 2 links below, which is the best, most up-to-date version of ublock to install? They are both for ublock, but the release dates and versions numbers are confusing, with the higher version number having apparently the earlier release date.
https://github.com/gorhill/uBlock/releases/tag/1.17.4 (1 Dec 2018)
https://github.com/gorhill/uBlock-for-firefox-legacy/releases/tag/firefox-legacy-1.16.4.18 (17 Feb 2020)
 
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Hi,
To revivie this thread, I'm currently using Firefox 52.9.0 esr on Win XP/SP3 and was trying to download the last offical signed version of ublock origin that works on this.
Looking on Google didn't turn up anything. There were some old versions, but they didn't go back far enough.
Bit of a long shot, but is anyone running an old official signed version of ublock origin they could copy the .xpi file for from their Firefox extensions folder and upload it somewhere for download?
 
snoopx said:
Hi,
Apologies if this has been asked before.
I'm using Firefox 52.9.0 on Win XP/SP3 and want to use the ublock add-on here:
https://github.com/gorhill/uBlock-for-firefox-legacy/releases/tag/firefox-legacy-1.16.4.18.
However, when I try to install it, I get the message it's unsigned and I can't proceed.
Does anyone know a way around this?
Thanks in advance.
Click to expand...

I have Firefox 52.4.0 ESR and uBlock Origin 1.16.4.23 which I forced to install. Mozilla Mothership has the whine tag 'uBlock Origin could not be verified for use in Firefox. Proceed with caution'. It took a lot of fiddling with 'about:config'. Not sure exactly sure what I did, but can sorta direct you to where I found the answer. Awhile back I mentioned at this forum finding a few sites that listed 'about:config' tweaks, but didn't list the URLs. Elizabeth23 asked for them, which I then provided...maybe she recalls where that post is, and I believe she mentioned knowing other such sites. The answer is there.
 
Finally found a link using the Wayback Machine to an old, genuine, signed version of Ublock Origin that works on Firefox 52.9.0:
Ublock Origin 1.14.22 ("Released Dec. 14, 2017 - Works with Firefox for Android 52.0 and later, Firefox 52.0 and later")
Downloaded from
https://web.archive.org/web/2017122...g/en-GB/firefox/addon/ublock-origin/versions/
https://addons.mozilla.org/firefox/downloads/file/812203/ublock_origin-1.14.22-an+fx.xpi
Tried it on a wepage with loads of ads. Blocked 95% of them out of the box, was able to block the remaining by R-clicking>Block.
 
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