Firefox Community Forum

Hi,

I have a very old version of Firefox (51.0.1 64-bit) on Windows 7 Pro. I know it's well out-of-date. It's not my "main" browser, but there are some things I use it for because there are (were) some handy old extension on it. For example there's an extension that simply copies any text I highlight, without my having to press CTRL-C. I find the "scrapbook" invaluable for saving info offline.

Yesterday everything was fine. Today ALL the extensions have been disable because "[extension] could not be verified for use in firefox and has been disabled". There is no option to enable them again.

I have backups of the extensions (xpi files), but firefox is telling me that they appear to be corrupted.

Is there any way to either enable the disabled extensions, or force firefox to reinstall then from my backups? I have toggled "xpinstall.signatures.required" to "false".

Thanks for any help.

Hello 1) How can I stop Google pop-ups? Each time I open a homepage that requires a log-in, a Google pop-up is disturbing and presses me to log-in via Google. This is harassment. I do not want to be harassed. 2) Firefox support: Each time I would like to get an answer, that is what I want, when I ask for support, I have do a lot of work until I get the bottom to contact you. Time is money, for me too. Where is the direct button to ask? 3) When I got an answer from you, is there a way I can store my questions and your answers? Asking and getting an answer by E-mail would be a good solution, but as I learned e-mail is not allowed to contact you. Kind regards, Ernst Kupfer.

I SUBSCRIBE TO TOTAL AD BLOCK BUT I ONLY USE FIREFOX AND DO NOT SEE HOW TO DOWNLOAD THE APP.

PLEASE ADVISE THANK YOU DAVID VOSBEIN [edited phone# from community forum]

I have the last Firefox version and am trying to add extensions (e.g. video download helper). When I click on Add to Firefox, it works at loading the extension, but without any success. The blue dot in the gray square dances and dances and dances.... Thanks !!

I'm trying to add the "current" (5.23.13 Oct '24) Nordpass extension to a computer (where I had successfully added it just a week ago, under another account)... but when I searched extensions yesterday, only the older/Legacy version of Nordpass (4.33.10 Nov '22) is shown in the results. Searched from a couple other computers that I manage, all only show the Old/Legacy Nordpass extension.

Some quite strange questions, which I'm not sure to which category it belongs to, While I use last FF on my main machine, I have another machine that still use firefox 56.0.2 since I like some of the addons there that never been remade/updated to newer FF versions,

It worked fine for years but suddenly all of the addons are disabled no matter what I've tried to do, Using backup, reinstall, about:config and setting xpinstall.signatures.required to false, you name it,

I was wondering if Mozilla pulled the plug on something or if some fixed date for things to expired has arrvied, As well as if there's a way to fix it in the settings/other means?

Some people said that Dev or Nighty edition can actually turn the xpinstall signatures to false while normal FF might have the option but won't actually do it, The problem is that I have no cluse which of their versions is equal to good old 56.0.2, Can anyone tell me?

Thx

System: Windows 11 Browser version: 136.0 64-bit

I'm experiencing an issue where the "Addon Manager" extension component has failed, causing the drag-and-search function, the address bar QR code feature, and the restore closed tabs feature to all become non-functional. These are arguably some of the most important features that enhance browsing efficiency on the PC version compared to the mobile version. Their malfunction severely impacts the overall browsing experience. I hope improvements can be made.

系统Windows11 浏览器版本136.0 64位 出现问题，扩展组建“附加组件管理器”失效。导致拖拽搜索功能，地址栏二维码功能，恢复关闭的标签页功能全部失灵！这些功能可以说是PC版比之移动端提升浏览效率最重要的一些功能！其失灵严重影响浏览器使用体验！望改进。

How do I activate the VPN Extension to exclude certain websites? I have added the extension and I already subscribe to VPN but a can't find the Preferences to select a website for exclusion.

I have Dark Reader installed and it works perfectly almost anywhere, but ironically, Firefox' support forum itself comes out all white regardless if it's on or off?

I'm on OpenSuse Leap 15.6 with KDE Plasma 5.27.11.

The other day I discovered all my extensions have been disabled. I have an old Mac and am not able to upgrade to a newer version of Firefox. Is Mozilla going to offer a solution for people like me who find their preferred browser to now be frustrating and inefficient? I would love to restore my add-ons. Thank you.

cna you tell me why Down load helper no longer seems to work. when I first open a pge the download icon appears in full colour and then fades to grey and won't recognise you tube videos is this something you can fix

Hello! Yesterday (03/16/2025) I received a message that the ChatZilla add-on to Firefox will be disabled on the next restart of FireFox. The message indicates that the extension could not be "verified".

I am using a VERY old computer for ChatZilla only: Windows XP Firefox 48.0.2 ChatZilla 0.9.92

I don't care about the age and inability to update any of the software, but I need to continue to use ChatZilla on this platform.

I have used ChatZilla on this machine for a very long time and do need to continue. Is there any way that I can make this work without having ChatZilla automatically disabled at the next restart of Firefox?

Hello, i am wondering about the blocking of extensions on "Quarantined Domains".

Is there a list of them available to explore? Who maintains this list? Can some fishy website admin add his domain to it to block some 3rd party security addons? How can i whitelist a fishy extension on only 1 blocked site without losing the protection?

The faq articles are not really helpful for this.