Firefox Community Forum

I tried to update from Mozilla VPN v. 2.36 to v. 2.37 by clicking the Update button in the message I received. I did not shut down the old version first. When I received the "old version is running" message, I clicked the "automatically close app" selection. All seemed to be going well until a message popped up saying "The feature you are trying to use is on a CD-ROM or other removable disk that is not available. Insert the 'Mozilla VPN' disk and click OK." When I clicked OK, a message said "The path " cannot be found. Verify that you have access to this location and try again, or try to find the installation package 'MozillaVPN.msi' in a folder from which you can install the product Mozilla VPN." I found the folder containing the MozillaVPN.msi file, but when I use it to restart the installation, I end up with the same error message. If I click Cancel instead of OK on the "Insert the disk" message, and error message pops up saying "The older version of Mozilla VPN cannot be removed. Contact your technical support group." Now my old version is gone, but I don't have a new version to use. What should I do now?

Hello, I run a movie and drama-related website: https://tvmon.com.co/. Recently, I’ve noticed that Firefox occasionally throws the following error when trying to access the site:

"Secure Connection Failed An error occurred during a connection to tvmon.com.co. . The OCSP response contains an invalid signing certificate. Error code: SEC_ERROR_OCSP_INVALID_SIGNING_CERT"

This issue is very strange because:

1. The site loads fine in Chrome, Edge, and Safari.

1. My SSL/TLS certificate is valid, up-to-date, and passes external tests (SSL Labs, etc.).

1. The error only appears occasionally in Firefox, refreshing sometimes fixes it, sometimes not.

1. Hosting and server logs show no issues at all.

I suspect this is related to Firefox’s stricter OCSP validation, but I’m not sure how to debug or resolve it. Since my site streams drama and movie content, this error is frustrating for users who rely on Firefox.

Has anyone else experienced this intermittent OCSP signing certificate error? Is there a known fix or workaround for Firefox-specific validation issues?

After all of those years, am I witnessing now that FF literally failing?

How could it become mysterious by that it lets user's location leaked to github even though: - third-party HiFi company VPN is active and in OpenVPN UDP/TCP, Wireguard, IPv6 On/Off, etc... - No bookmark to corresponding website - Cache and website data were so-called cleaned, - Other browsers don't give that symptom, only FF - No related plugin, out of only 3

it's impossible to find out how it lends to the language and region query of this website every time after cleaning. Is FF getting closed app?

Is that a no-way-to-explain effect of language models' evolution is exponentially higher in every 4 months after two years?

everytime i upload a picture to some websites like tiktok/microsoft or even firefox, my images' quality gets decreased like from 2160x2160 to 230x230 idk why help me, firefox if you see this, FIX YOUR BROWSER ITS UNUSABLE

Previous to version 151.0.1, when I pressed ctrl-L, Firefox focused the URL bar and I was able to edit the URL. Now, on 151.0.1, pressing ctrl-L clears the URL and a dropdown for the search engine appears in the left of the URL bar (see attached screenshot). I have verified this on a new, blank profile. Is there a way to restore the old behavior?

I would like to control the animation speed of .GIF (ie on Wikipedia). I would like to stop, manual single step or play frames one per duration (ie 1 frame every 2 sec or 1 frame every .5 sec). I would also like to control whether it repeats. I would like to freeze at any point then resume playing given the above settings.

How do I do this?

PS: There may be other types of animation files which the above control could apply to as well.

Thank you kindly for any guidance!

Issue: When Firefox starts after a system reboot, it starts on the incorrect desktop. This seems to be off by one; that is, I have Firefox assigned to Desktop 3 (using the Dock icon's Options menu). Under normal operation, it starts on Desktop 3, but after a reboot, it seems to start on (more recently) Desktop 2 or (earlier) Desktop 4. Unsure about what causes it to prefer 2 vs. 4.

This seems to happen after I've shut down (quit Firefox normally, shut down without reopening windows on login, power goes off, power on, log in, then click on the Firefox icon in the Dock) or after a system update (which reopens windows on login for me after rebooting and installing the update). It does not seem to happen after a Firefox update or after quitting Firefox normally and then restarting it from the Dock icon right away.

Pretty irritating, as I have major applications assigned to specific desktops, and Firefox is the only one that seems to forget which desktop it should be on.

Details:

Firefox 150.0.3 (aarch64):

• Settings > General > Startup > Open previous windows and tabs > TRUE (checked)

macos 26.5 (25F71) Tahoe:

• Settings > Desktop and Dock > Mission Control:
• ---> Automatically rearrange Spaces based on most recent use: FALSE
• ---> ...switch to a Space with open windows for that application: TRUE
• ---> Group windows by application: TRUE
• ---> Displays have separate Spaces: TRUE
• Dock > Firefox application icon > [Right Click] > Options > Assign To > This Desktop (i.e., Desktop 3)
• Apple Menu > Shutdown > Reopen windows when logging in: FALSE

MacBook Air M4 2025 24 GB RAM:

• No external displays connected

If I may offer my perspective, I believe the Enhanced Tracking Protection is a commendable choice. I'm afraid to say that I always get an error message on the TikTok website. I'm afraid I don't have the ability to circumvent this block. I would be very grateful if you could assist me in this matter. I believe I have a clear understanding of the website into which I wish to log in. It would be very helpful if there were an option to manually deactivate the protective features. <if i may offer my believe the enhanced tracking protection is a commendable choice. p></if>

<This question has been edited due to inappropriate content. Please ensure you follow the Mozilla Support rules and guidelines >

the web page will show a currently typing cursor, the little blinking line on typing stuff, if i misclick lets say on an amazon product page it will just appear. its like the code has changed to make every screen/tab/window/page a word document and i dont know how it happened, how to fix it and what all it even is so help would be massively appreciated, thank you. sorry about the typing and commas thigny idk what is called in english as english is no my first langwige

Hello,

I have been testing all browsers I use (Firefox, Chrome, Edge) on Cloudflare Post-Quantum Key Agreement to verify PQC support. They all support the X25519MLKEM768 hybrid scheme (i.e. Cloudflare web page returns "You are using X25519MLKEM768 which is post-quantum secure").

The issue: When I run the test in Firefox multiple times by doing repeated hard refreshes (Ctrl+Shift+R), quite often the result is "You are using X25519 which is not post-quantum secure". Sometimes the very first run after opening Firefox gives the X25519 (failing) result. "Often" varies. Sometimes it's around 10 fails out of 50 tests, other times it's 1 out of 50. It seems random.

I have read that sometimes networking equipment or even ISPs can be the cause of PQC requests falling back to non-PQC due to the long keys in PQC, but I do not see this intermittent issue with Chrome or Edge on the same computer/network/ISP as Firefox. I have not seen a single failure so far on those two browsers. The only variable I am aware of is the web browser.

I also tried connecting to a cellular hotspot as well as disabling my Norton 360 firewall and the results are the same as above.

Looking for help to resolve this issue. Thanks.

I have logged into TinyURL.com MANY times using Firefox. Now, I get a Cloudflare Validation Error when trying to do so (see attached screenshot/snip).

This was done in Troubleshooting mode, but is the same in standard mode, though I have no extensions enabled. I've tried turning Protection Tracking off; no luck. - We use ZoneAlarm, but the Web Secure functions are all disabled. - I have the same issue on 2 PC's, one Windows 10 and the other Windows 11, 64-bit. - I'm on FF release 150.0.2 - 64-bit, and both Windows installs are fully updated and kept that way. - I've reached out to TinyURL in hopes of resolving the issue. They suggested many of the above steps but not resolved this issue. - HOWEVER, I've found that login via Google Chrome IS seamless - no issues.

What is it with Firefox that it's having issues with the Cloudflare "Human" check? I've checked the Cloudflare site; all conditions are good, and this very setup passed the "Turnstile" check.

FF is my #1 preferred browser, so please look into this. I see that others have posted similar issues over multiple years here (but a search of support articles didn't find one . . .)

Thanks,

Trying to download Firefox.com. Screen states “ your download was interrupted “ No explanation why or what to do to allow download to succeed?

I like the concept of having various news articles & topics of interest on the Start Page. However, I don't like the fact that many of the links take me to "subscriber only" sites, and ones that I have no subscription to! We should be able to eliminate those sites we can't read the articles on, it would be pretty easy to have that option, instead of our having to waste time, going on wild goose chases!

And I first attempted to log in to the feedback & suggestions page, however Firefox's own password auto-fill, kept putting in the wrong password, (one for a completely different site), and when I searched to find the correct password, it was too late. Soon as I entered the correct one, it locked me out, saying too many consecutive attempts had been made! To make it worse, the error message gave no info as to what my next step should be!! It didn't say to try later, how much later, provided no link to a page to reset my password, no "forgot password" option, nothing. Why is logging in on Mozilla's own, various sites, always seem to be so buggy? I've had more issues just trying to log in, than I ever should have, no idea why this happens so often, although with the auto-fill inputting the wrong information, that could be one reason.