كل المنتجات Community Forum

I’ve developed a Firefox extension similar to the RankingsFactor SEO Chrome Extension, which analyzes on-page SEO elements such as meta tags, headings, links, and canonical tags.

The core functionality works fine in Chrome, but when I ported it to Firefox using the WebExtensions API, I’m facing permission issues while trying to access or read the page content (DOM).

Here’s what I’m trying to do:

Inject a content script to read <meta> tags, headings, and links.

Display this extracted data inside my extension popup.

However, in Firefox, the script doesn’t seem to have proper access to the page DOM — even though I’ve included "permissions": ["activeTab", "tabs", "<all_urls>"] in manifest.json.

I’d like to know:

Are there any additional permissions required in Firefox to read page content?

Does Firefox handle activeTab or content_scripts differently than Chrome?

Is there a specific event or user action needed to grant temporary permissions?

Any help, code examples, or guidance on fixing these permission restrictions would be appreciated.

Ever since thunderbird did its major upgrade to include encryption some years ago, when it resulted in my address book being lost, I've foung thunderbird harder to use, Emails get downloaded 2 znd 3 times over so I once had 40,000 emails in my in box the vast majority duplicates. After deleting most of themI was dismayed to have the double and triple downloading continue. I now the email on my angroid phone far more than Thunderbird because of this, sometimes when drafting emails the message screen goes god knows where when I go to find add address from my address book, There is yet a straight forward to rasily increase and decrease the font size in received emails. As my eyesight fails thay's an important omission to have to work around, Firefox has an app that adds buttons to increase and decrease font size, simple. Never understood why Thunderbird didn't have somwthing similar, Much more convenient than have to stop and search for my glasses,

I think a back to basics approach to Thunderbird rather then adding bells and whistles that may ne nice buy seldom used, I just learned gmail allows you to retract emails. Yhat's a feature that I will lead me to at least explore gmail. That's mt 2 cents,

don't misunderstand me I've used Thunderbird for over 20 years and would be very re;uctant to leave it,

                                                                   Andy Strojny

Whenever I go back and forth between apps, there websites I have on Firefox gets reloaded. It is annoying and has been risky while on my banking website. This is why I have stopped using Firefox for any transaction related work.

Bonjour, Je reçois des mails d'un même site, certains sont cliquables, d'autres non. Si je les lis avec orange, tout est ok, sauf avec thunderbird. Que dois faire pour continuer avec thunderbird. Merci pour votre aide

I was helping my hosted email provider track a phishing email and I had to turn on my headers in my emails so they could track the source of the email. Now I need to turn off the "Display Header" setting and I cannot locate it.

How do I make Thunderbird, just forward the email without the full header?

Thanks in advance for the assistance.

I have been using Thunderbird for a few months and changed my Google Password(even though Im not quite sure if the error wasnt already occuring before that), but now when I go on Thunderbird it gives me a popup window that says "Enter credentials for name@gmail.com on imap.gmail.com". Theres a field for the email-adress, but when I click "Next" theres the following error: "400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

These are the things I tried: Entering the old or new Password. Checked if the config is set to OAuth2 in both incoming and outgoing servers and enabled on Gmail-Account. Deleted and tried to (unsuccessfully) reregister my Thunderbird-Account. The same error pops up when it checks my password after the configuration.

I dont know if the password change is actually the cause, since I think I remember the error message appearing earlier today, before I changed the password, but Im not sure. Also, I have another account linked to my Thunderbird, with no changed credentials, and while there is no similar error message, thunderbird suddenly also has problems connecting to it and asks to retry a few times (3-4) before actually connecting everytime I open it.

For the last several weeks, EVERY time I use Firefox on my android(samsung) phone, I get a popup message "What do you think about Firefox" with choice of I'm having issues, or It's great. picking one it wants me to rate Firefox on the Google Play Store. but selecting the like does not take to a place on the Google Play store. and this happens every time. Does anyone know where this message originates from and how I can turn it off?

Díky za odpověď, Bohužel systém mi nedovolí zaznamenat hesla jednotlivých účtu, pro zobrazení vyžaduje hlavní heslo. Existuje postup pro změnu hl. hesla, bez jeho znalosti. Díky za odpověď. Mielec

I previously reset my password, but I didn't read it carefully, so I skipped entering the 32-digit recovery password, I lost my account data, and currently I still have my 32-digit password, please help.

I was positively surprised recently when the new Firefox profile manager (about:profilemanager) was introduced. https://www.tech2geek.net/how-to-use-the-new-updated-profile-manager-in-firefox-2025/ is an article about that.

However, I thought it's just a new visual UI with an in-browser switcher for the existing profiles (that I already had setup). However, it does not appear so.

The differences I see:

1. 1. 1. old profile management

• was managed by `about:profiles` or when starting FIrefox with `-P`
• is saved in `~/firefox` and the `profiles.ini` clearly and quite obviously mentions them there, so it's easy to manage them.

I also found this old support article: https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

1. 1. 1. new profile management

• automatically asks on startup if more than one profile exists
• is managed by `about:profilemanager` or with the Firefox burger menu
• seems to be saved in `~/.mozilla/firefox/Profile Groups` (Linux path here) in some .sqlite files, and I do not quite understand the format. Not mentioned in `profiles.ini`.
• also, when you change something here (even like opening a profile?), you cannot open `about:profiles` anymore, because it says "Some Firefox process has made changes to your profile, […] you need to restart Firefox", only after a restart further changes would be possible, which I find quite confusing but it also indicates somehow the features belong together?

And this seems to be the new one: https://support.mozilla.org/en-US/kb/profile-management#w_whats-the-difference-between-profiles-and-multi-account-containers

1. 1. Questions

• What are the differences here (I may have missed)?
• How can the new profile feature save so few files? Is it technically called "profile groups"?
• And the most important: How can I migrate an old profile? (In order to use the new features and GUI etc. I quite like)