Firefox Community Forum

Home Internet speed via cable 500 Mbps. When checking the Internet speed through the Firefox browser (version 133.0.3), incoming and outgoing about 250 Mbps. That is, the browser cuts the speed twice. When checking the speed through Google Chrome (version 145.0.7632.160), the Internet speed is about the declared 500 Mbps. Please help solve the problem with Internet speed through the Firefox browser.

I can submit posts on X using Chrome, but Firefox, for some reason, has cut off the portion of the posting box that contains the submit button and other edit features. It simply vanished as of March 10 2026.

I have attached screenshots showing FireFox vs Chrome.

I cleared cache and cookies to no avail. I have the latest Firefox version. 148.0 64 bit. Windows 11 operating system.

There used to be a much more useful interface for clearing specific browsing data (the landscape-oriented one). The new interface is far less detailed to the point of strictly limiting its functionality. There used to be a config setting ("privacy.sanitize.useOldClearHistoryDialog") that could toggle which interface to use, but as of an update in the last week (I've been away without a computer for a while), that toggle does nothing. Is there any other setting that can make this feature actually useful again?

I am writing the following sentence in html: <a href="https://www.users.no/ingehelland/Desktop/QDT_article.pdf">QDT_article</a>. Firefox refuses to open the file

When I go to the all trails site, I get a blank page, with only the words, "Please enable JS and disable any ad blocker" I checked my settings, and my ad blocker in Firefox is disabled. I cannot figure out, in my settings, how to verify that my javascript is enabled.

i need to change my email since my old email go hacked, so i dont have access to my old email anymore. i still have access to my account since i am logged in on my phone and desktop. I have backup authentication codes if that helps. Codes are getting sent to my hacked email which i dont have access to.

The alert message appears everytime I go back into gmail This browser version is no longer supported. Please upgrade to a supported browser. I checked that Firefox was last updated Feb. 26. So I'm understanding what's going on. thanks

A few weeks ago, I started to get repeated messages from Firefox asking me to make Firefox my default browser. Firefox has been my default browser for years, and I have never made anything else my default browser. Anyway, I followed the prompts and re-selected Firefox as my default browser. A little while would go by (sometimes as little as a minute) and I would again get the prompts to select Firefox as my default browser. This append 20 or 30 times. And, every time it happened, all of my saved passwords disappeared, but would reappear when I re-selected Firefox. In the last week, this situation has gotten a lot worse. Now, the saved passwords don't come back. And, the prompt you usually get when entering passwords to a new site offering to save the password doesn't appear any more. So, the only way I can rebuild my saved passwords is to enter them manually, which I am not going to do because it would take a couple of hours and then I'm pretty sure they would all disappear again. Also, I like to go to my homepage when I open a new tab. Can't do that anymore. When I open a new tab, I get a new private browsing window. I have checked all my settings a dozen times, and they are correct. I have combed your support sites and there is nothing there to help me. I don't want to dump Firefox, but I cannot continue with it behaving as it does now. Is there anyone anywhere in your organization who can help me? Thank you.

All the icons in my Bookmark Toolbar have been working great with no errors for several years, through countless updates with no problem. Then, recently I noticed all the icons lost the color icons and just show as a wire globe. Clicking on them, any one of them, they all go to the same website. If I remove them, got to the website I want there, and drag the URL to the bookmark bar, things are back to normal for that icon. So I replaced each one, and the next day, when I open Firefox, all the icons are again wire globes. It seems that Firefox will not retain the URL for any of the icons.

Very strange.

I routinely keep a tab open to view my iCloud account (PC running Windows 11 Home).

Everything has worked just fine in the past. Here are the basics using Edge... -The home page displays like the first attachment. -Clicking an icon takes me to the calendar page (see the Edge screenshot in the second attachment) -Clicking the word, 'iCloud' (see yellow arrow in second attachment) returns me to the home page.

But now, using Firefox, if I click the calendar icon (or any other) the calendar return link and Calendar page title are superimposed over one another and the return link does not work. -Check out the yellow arrow in the third attachment -If I click the iCloud/Calendar mishmash I get nothing. If I click left arrow or Back I get nothing.

Note that this still works fine with Edge but does not work with Firefox. Have tried clearing Firefox cache (no change) but don't know what else to try.

Any ideas?

I already changed the password but I’d be glad to know if there is anything I could do or anything you could tell me about the person who entered my Firefox, the person is apparently from Russia, I’ll attach the image below.

Until some days ago I could use the add on "Video Downloadhelper" without problems on my old Macbook Air (2017) with OS10.15.7 but suddenly the add on was not available anymore. I purchased a valid license for this add on. In the Firefox adjustments it was mentioned as deactivated. Could you please let me know, how I can activate the Video Downloadhelper again? Thanking you in advance for your kind support. Sincerely, Ulf Gaertner