Firefox Support Forum

Hello everyone,

I'm currently consuming APIs hosted on an external server using Java( or any other server side language), and everything works smoothly. However, when attempting to consume the same APIs in JavaScript, I encounter the 'Access-Control-Allow-Origin' error.

After some research, I discovered that browsers implement security checks leading to this issue. Can anyone advise on how to disable these security checks or resolve this issue when accessing the website in the Firefox browser? Any insights would be greatly appreciated. Thanks in advance!

Hi jscher2000, I want to thank you for your advice concerning a problem I had downloading Firefox to my Windows 10 laptop. I tried to follow your advice but was not successful. In the end, I googled "what if Firefox doesn't install". It took me to a website, https://www.makeuseof.com/fix-firefox-not-installing-windows , which took me to an article entitled "8 Fixes to Try if Firefox Won't Install on Windows". I tried #1 and #2 without success. #3, Temporarily Disable Your Antivirus Software, worked. Firefox is up and running. Feel free to share this with anyone who has a similar problem. No guarantee that it will work, but its worth a try. Again, thank you. drzee1946

Hi all.

My sync is only sometimes working. I notice that when saving a bookmark and trying to find it on another device. I sometimes have to manually resync it or wait for a few days to get it shown on my other devices. Same with the tab sharing across devices.. In most cases it doesn't work at all..

Here is a current sync-log: https://pastebin.com/TWugtAbm

Is there a way to set the default view and sorting for file upload folder?

The default for me is, detailed view and sorted by date.

I wanted to change it to large icon and sort by name, so it's easier to upload images. but I have to change the setting for every individual folder, is there a way to just set it as default?

I use Firefox version 103, the old version that is perfectly compatible with an extension I always use. I love this old version, and I don't want to update it to the new version. But the update reminder pops up many times everyday. it's so annoying. I used "about config" to turn it off (see photo 2); it works a bit, but the popup still there once daily after the configuration. I want to turn it off permanently. Is there any way to do it? Thank you very much!!

Suddenly on my PC the icon of Firefox turned white on both desktop and taskbar. And whenever I try to open Firefox, it says, "The file or directory is corrupted and unreadable." And I didn't make any changes myself. So far it was fine. Now what can/should I do?

4 PM, November 7, 2023 EST. The "About" page of all YouTube channels suddenly disappeared, whatever the the login status. A compressed version will show up from a channel's home page when clicking on the site description from its Home page. Make things weirder, ~6:15 PM it WAS visible from the Tor browser but started acting the same. I have no ad blockers, or ANY extension installed on any apps, including Firefox/TOR browsers. Updates to both browsers were made prior to this behavior. It may be Google/YouTube's fault but it's becoming frustrating because I prefer Mozilla's browsers over Edge or Chrome.

Firefox is running x 8 in my task manager at the moment. Why does it keep multiplying and slowing down my computer? I am almost ready to uninstall Firefox. If I merely need to revert to an earlier version of Firefox, please let me know how to do that. Thank you. Shannon

This morning the add-on 'Search By Image' has ceased working. I use it daily, it worked yesterday, and so far as I know there have been no updates to FF or SBI or Windows.

To test I tried removing SBI and re-adding it, and disabling Malwarebytes.

I disabled SBI and installed "Image Search Options". ISO works, though I prefer SBI.

Win11, FF is now 119.0, but it auto-updated when I went to check so I do not know what it was when the problem began this morning. I have not restarted, I have too many tabs open at the moment.

This is also happening to a different PC that is Win10/FF, but never had Malwarebytes installed. SBI still does not work after restarting FF v119.0 in Win10.

Any ideas on how to diagnose this?

Hello,

How come that we are in 2023 and we still do not have major features like Chrome's Profiles or Orion Browser's Profiles.

For example, Orion Browser creates an app per profile and this allows MacOS users to customize each app with a different icon. This seems small but on a taskbar we can differentiate the instances faster.

Why is that the best option for managing profiles in Firefox is the Firefox Profile Switcher, a third-party tool supported by a community member?

Will this ever be addressed? Firefox is better than the others in so many things but, for example, even Safari implemented Profiles now.

To be clear: containers are NOT the same thing as profiles and profiles still have an usage. For example, my work profile has no syncs, different extensions and stricter configurations than my personal profile and this cannot be done with containers.

Thank you!

While downloading XLS file from some webpage, it is converting as PDF ( File extension is changing from XLS to PDF) , Same is downloading properly in other browsers