Diễn đàn hỗ trợ Firefox

Why can a stupid failing script on a web-page, or even intentionally so programmed script disable the copy (and sometimes paste) functionality?

How can this be disabled/fixed?

One highlights a text (any text) on some web sites, Edit menu allows Copy, context menu allows Copy, one hits Copy, nothing happens. It's not even a page where someone wanted to "copy protect" some information.

Copy and Paste should work just as advertised since those were invented, how hard can it be to get that right? Even stupid Notepad never fails at it. And no, I don't care what the idiot who programmed a page though would be/should be best for me, I want Copy to be copy, Paste to be paste. This used to work in "original" Firefoxes even when page developers wanted to make it not work.

And yes, while on a given page Copy fails miserably, at the same time in other pages it works.

Dark Mode used to work beautifully in Firefox. Today it stopped working. I can choose Dark Mode in the settings page, and the settings page itself then uses Dark Mode. But Dark Mode does not work in any of the other pages, only the settings page. I think it must be a flaw in an update that was installed automatically today. (September 7, 2021)

Is there a way to uninstall this update and go back to the previous version. Dark Mode used to work beautifully and Firefox was my favorite browser. Can someone help? Thanks.

After Firefox updated, I can no longer access www.apple.com. This is the error I get now:

Blocked by X-Frame-Options Policy

An error occurred during a connection to idmsa.apple.com.

Firefox prevented this page from loading in this context because the page has an X-Frame-Options policy that disallows it.

Can anyone tell me how to fix this issue as soon as possible. Thank You.

With Firefox 91, I can no longer disable the hideous Proton changes to tabs. Separating tabs from their content is a really poor user interface decision. It makes it harder to tell which tab is the current tab. With Proton, the active tab is slightly brighter than the inactive tabs. For older folks and color blind folks, this makes it all but impossible to to tell which tab is active.

If you won't come to your senses and revert this bad user interface decision, then at least add an official option to disable it and go back to the old tab style that other browsers use. If you won't do that, then I will just have to use a different browser. Which makes me very sad, because aside from your bad sense in user interface design, I loved Firefox.

Chrome has a really fantastic feature called "Tab Groups" - it's pretty self explanatory but it basically allows you to quickly group related sets of tabs.

This is an incredibly useful feature but it seems Firefox hasn't got anything like it.

I've tried a few of the third party add-ons such as Tree-Style-Tabs but they're all over-complicated, take up too much screen real estate or change the way tabs operate.

Is adding simple Tab Grouping functionality on the Firefox roadmap?

If not - has anyone found any good add-ons to replicate the Chrome functionality?

ecure Connection Failed

An error occurred during a connection to www.myutiitsl.com. PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

FFox 92 update today. Menu spacing went to double. No shock there. Found the CSS code below for UserChrome.css and set it up.

EX.

menupopup > menuitem, menupopup > menu {
  padding-block: 4px !important;
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

EX:

menupopup > menuitem, menupopup > menu {
  padding-block: 0px !important;
}
:root {
  --arrowpanel-menuitem-padding: 0px 0px !important;
}

But, it doesn't get any smaller than the above 4/8px set up. Bug? Perhaps there's another CSS setting to be tweaked for V 92? I do not have any other CSS for these items elsewhere in my UserChrome file.

Every day I get a Firefox popup that says, "Firefox cannot download the latest version. Download the latest version and we will help you install it". Sometimes the popup appears immediately after I open my browesr, and sometimes it appears after I've been using the browser for several hours.

I've been doing the daily download and install, but I want to know what's causing this. I'm using a Late 2015 21.5" iMac running macOS Catalina Version 10.15.7. Firefox is Version 82.0b4, set as default browser with automatic updates turned on. I've been running Beta versions of Firefox for >2 years and have not had problems with updates before this. Thanks for any suggestions and solutions!

Why am I now having Bing show up as my default search engine when opening Firefox? I don't want Bing but can't find any way to remove it. My settings are such that Yahoo should show upon opening the browser and Google is set as my default search engine. I've uninstalled, reinstalled, check settings, etc. but I still get the damn Bing showing up as my home page and search engine. Any help would be appreciated.

How can I permanently force firefox's automatic updates to be turned off? Which guy modified the original design for the new version of Firefox bookmarks? Is there something wrong with that man's brain? Is the spacing of the new bookmark item too large to read? It's very uncomfortable.

I can't open or create facebook accounts with any browser. Why? Even as soon as creating a new facebook account and nothing is posted, I am not obey their community rules. I do nothing strange and peculiar things. For example, First Name: Myo Last Name:Tun DOB:28/12/1978

Nothing is out of facebook community standard. But I can't use facebook with any browser. Why?

With respect, Myo Min Tun, Myanmar.

Just updated to V89. What I don't like is the font size in the tool bar. I used the zoom control but that doesn't change the font size in the tool bar. Any suggestions as to how to change the tool bar size and/or the font size? Thanks

I have two versions of Firefox installed on my work PC, the regular one for my everyday browsing and the Developer's Edition for my work with the regular one being my default browser. For some reason, through no effort on my part, I ended up on the beta channel for the regular browser.

That was OK until the latest beta (version 90) started showing an extremely annoying bug. On a daily basis, on average, it will stop loading pages for no reason. For that reason, I'd like to get off of the beta channel and get back to using the release version. Would uninstalling the beta version and installing the release version do that for me? Or will I somehow end up back on the beta channel and get upgraded to the beta version again? (If I do have to uninstall the beta and install the release, I want to keep all of the settings, bookmarks, plugins, etc. that I have in that browser. I have the Dev Edition browser set up to never sync, so it has a different set of settings, etc., which I don't want carried over to the other browser.)

Firefox recently changed the Show all Bookmarks shortcut from Ctrl + Shift + B to Ctrl + Shift + O.

Ctrl + Shift + B shortcut moved from Show all Bookmarks to Show/hide the Bookmarks toolbar.

For what reason and how stupid do you have to be to change something that had remained unchanged for years?

Or am I the stupid who cannot understand what the inevitable reason is to complicate people's lives?

Thanks.

Nomen