Firefox Community Forum

Hello!

I first installed Video Download Helper several weeks ago and it worked fine. However, since the update of 04 March, 2026, it no longer works with YouTube. (It does, however, still work with Instagram.) Having checked all of the settings (which I had/have not changed), I uninstalled it today and then re-installed it. This hasn't helped. With YouTube, the Downloader icon (pinned to toolbar) simply remains grey and does not show any videos when opened. I am using the latest, fully updated version of Firefox with Windows 10.

Can anyone help, please?

Many thanks,

Stuart.

I can no longer pin extensions/add-ons to the toolbar. My interface does not look like the one in the help section. I don't see a gear, I see three dots. And when I click on the three dots I don't have the option to pin to toolbar.

I am using Firefox 147.0.4 on Mac OS 26.3 Tahoe.

How do I answer this request? I cannot find any "ad blocking".

Your browser prevents the display of ads, ads help to run and improve this site. We show only one ad per page. Please turn off ad blocking, thank you.

How to delete the word finder toolbar at the bottom of the browser?

I tried to change the wallpaper but instead found different color settings for the browser. I selected one, but nothing changed, except now I have this word finder toolbar so anytime I type something it pops up and I have to reset focus every time from it back to my computer page. This basically makes my computer unusable.

Ich habe folgende Fehlermeldung: Fehler! Bitte wiederholen...

Problem mit Chat \"Connecting ...\" ? Bitte deaktivieren Sie ADBlock in chrome://extensions/ (Chrome) oder about:addons (Firefox) (Nur Whitelisting funktioniert nicht).

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Was muß ich machen?

Hi,

I am the developer of the Dictionary Anywhere extension which is a Firefox recommended extension. Recently my extension stopped performing up to its expectations due to backend changes in public API that it uses to find meaning of the words.

However, I am unable to modify the code of extension to fix the issue as I am not able to login to my account due to it being behind MFA, and I have lost access to the phone which contains those MFA codes.

Can something be done here, to allow me to update the extension to rectify the issue that 50k users who use this extension regularly are facing? For example, can the extension be transferred to another account through which it can be updated, lots of users are suffering as the extension is not working. I have access to the source code of the extension .

Thanks and Regards

I'm on WinXP and Win7; FF is there respectively on ESR 52.6.0, and 56.0.2.

• • Pls refrain from lecturing me on updating etc. I need it to be this way for umpteen reasons. Thanks for understanding.**

First, all of a sudden all my legacy add-ons were disabled. Most of them ensure FF looks like it did ages ago, which is what I'm used to, and need, to function properly myself. They overall are no longer maintained or downloadable, hence the need to stay on lower browser versions as well.

Managed to fix that.

Then, last Fri, my webmail provider missed updating their security certificate. They seemingly later do, but I am left unable to access their website from FF on both machines, and Chrome on the XP. Disaster.

The error messages I get are, in FF:

[www.netaddress.com] uses an invalid security certificate.

The certificate is not trusted because the issuer certificate is unknown. The server might not be sending the appropriate intermediate certificates. An additional root certificate may need to be imported.

Error code: <a id="errorCode" title="SEC\\\\\\\\\\\\\\\_ERROR\\\\\\\\\\\\\\\_UNKNOWN\\\\\\\\\\\\\\\_ISSUER">SEC\_ERROR\_UNKNOWN\_ISSUER</a>

and in Chrome:

classic.netaddress.com normally uses encryption to protect your information. When Google Chrome tried to connect to classic.netaddress.com this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be classic.netaddress.com, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Google Chrome stopped the connection before any data was exchanged.

You cannot visit [classic.netaddress.com] right now because the website uses HSTS. Network errors and attacks are usually temporary, so this page will probably work later.

When running a SSL server test on their certificate it turned back: Chain issues Incorrect order, Contains anchor

No idea if that's relevant.

I tried just abt everything I was handed, could think of, or googled. Adding an exception included. Nothing works. Logically, the error should be on their end (w/ their old certificate, it all worked fine, now it doesn't), but somehow I keep being directed to that your root certificate having expired is the culprit.

Earlier today, I took the plunge and updated FF to 72.0.2 on the Win7 machine. (My webmail doesn't have full functionality on Chrome, so I was still very hampered in that regard there.) Now I can access the webmail -- but all my add-ons AGAIN are disabled. And what I did before to make the work does now NOT work anymore.

Can someone pls take me out of my misery? My whole existence is falling apart. I am already on 75 % (invisible) disability. Nothing works, least of all I. I am days behind on an already massively overburdened schedule. Not everyone can handle constant updates and their user interface being changed all the time. Some ppl are dependent on things looking and acting the exact same.

I'd like my add-ons back functional on the Win7 machine, and my webmail back -- INCLUDING the add-ons remaining functional, on the WinXP. Thank you.

I have no idea where the ad blocker is here on Firefox and cannot turn it off when I need to. It is crazy that it is so difficult to find AD BLOCKER - I find articles that say how to do it but they make no sense because I try to follow and it still does not work. I need to know how to turn off the ad blocker - especially when I want to use Rakuten - I cannot never use it because I cannot manage my ad blocker when I need to

Hi! I've tried everything, from refreshing to troubleshoot mode, but it says the same thing, that every installation I try has been adborted due to it being corrupt. It even deleted my previous theme. I'm very stressed, could someone please help? I use Nobara Linux and will include screenshots of the following: My browser is also completely up to date, I just reinstalled. I also followed the guide it said for this issue and deleted extensions.json but couldn't find the others.

It also disappears when I download extensions after verifying and when I click to install again the button won't move before going to the actual add-ons area. Thanks!

Я нажимаю на кнопку расширений - а у меня вместо списка моих расширений зачем-то открывается каталог, ничего подобного 10 минут назад не было, я теперь не могу использовать расширения

Hello again I wrote to you yesterday and I explained that I'm almost blind anyway you applied very quickly and you suggested I open up extensions and then right click on the appropriate extension and I would see a list among which I would be told how to pin it to clipboard or pin it to toolbox I'm sorry pin it to toolbar but however I opened the list and it was suggesting how to save the page how to open it the second page all sorts of other things but never once did I see anything about pinning it to a toolbar i'm sorry i wrote earlier today and try to include a picture of what I was seeing but unfortunately it wasn't the correct format in the brief the e-mail was returned so I'm still stuck with the same problem I have no idea how to see my extensions none of them are showing hope you understand I know I go on a bit but I'm writing this with dictation anyway thank you again David Shaw

hi,

for some reson my serialnumber for video downloadhelper does not work any longer?

I am not sure you are the one to contact but at least it's a start, you may know who to mail in that case?

I bought the app april 21 2024

thanks and all the. best charlie