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Obscure canvas rendering issue

Hello, I have created a webpage with a canvas element that allows the user to draw an irregular path by pressing down the mouse, similar to the free drawing of a paint … (Lesen Sie mehr)

Hello,

I have created a webpage with a canvas element that allows the user to draw an irregular path by pressing down the mouse, similar to the free drawing of a paint application. The issue is that the very first time that the user presses the mouse, the line stops abruptly, while the next times the lines are drawn correctly. The events seem to fire correctly and the page works fine at Chromium, so it seems to be a Firefox issue. You can find the html page below. I am curious, what could be the problem?

<!DOCTYPE html>
<html lang="el">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Canvas</title>
  <style>
    #canvas {
      background-color: whitesmoke;
      border: solid 2px brown;
    }
  </style>
</head>

<body>
  <canvas id="canvas"></canvas>

  <script>
    function startDrawing(e) {
      isDrawing = true;
      context.beginPath();
      context.moveTo(e.offsetX, e.offsetY);
    }

    function draw(e) {
      if (isDrawing) {
        context.lineTo(e.offsetX, e.offsetY);
        context.stroke();
      }
    }

    function stopDrawing(e) {
      console.log("stopped drawing")
      isDrawing = false;
    }

    const canvas = document.getElementById('canvas');
    const context = canvas.getContext('2d');
    var isDrawing = false;
    canvas.width = 1000;
    canvas.height = 1000;
    context.strokeStyle = "#913d88";
    context.lineWidth = 2;
    canvas.onmousedown = startDrawing;
    canvas.onmouseup = stopDrawing;
    canvas.onmousemove = draw;
  </script>
</body>

</html>

Gefragt von ngiatsog vor 5 Monaten

Letzte Antwort von jscher2000 - Support Volunteer vor 5 Monaten

How do I dismiss a permission dialog?

Sometimes a box pops up on the screen that asks if I want to block or allow something. Sometimes I have no interest in doing either, and just want the damned dialog out o… (Lesen Sie mehr)

Sometimes a box pops up on the screen that asks if I want to block or allow something. Sometimes I have no interest in doing either, and just want the damned dialog out of my face. The page seems to work otherwise, but the stupid browser keeps the dialog over top of things, and clicking outside of it, and hitting Esc, don't make it go away. I think those actions used to work, and I think there, sensibly, used to be a dismiss option, but that seems to be absent now. There's no sense to trying to force me to make a decision I don't want to make, and doesn't even need to be made, and I want this thing to cut it out.

Gefragt von Sterrence vor 5 Monaten

Letzte Antwort von cor-el vor 5 Monaten

how to restore Firefox status bar to show URL under cursor

Firefox 115.11.0esr from openSuse doesn't display a status bar at the bottom of the window. How can I restore this feature to display the actual URL of a "link" under th… (Lesen Sie mehr)

Firefox 115.11.0esr from openSuse doesn't display a status bar at the bottom of the window. How can I restore this feature to display the actual URL of a "link" under the cursor, as in Thunderbird?

Gefragt von konsultor vor 4 Monaten

Letzte Antwort von jonzn4SUSE vor 4 Monaten

Paste works, but Copy does not

When I copy something to my clipboard I can paste it into Firefox. Into web pages and also into the URL bar. But when I copy something in Firefox, it does not go to the … (Lesen Sie mehr)

When I copy something to my clipboard I can paste it into Firefox. Into web pages and also into the URL bar.

But when I copy something in Firefox, it does not go to the clipboard. The clipboard still hast the content which was already there.

Also strange: When I cut text in a textarea, input element or the URL bar, the text is removed. But it is not sent to the clipboard. When I cut and paste, the text I get is what was previously in the clipboard.

What could be the cause? How can I debug this problem?

Gefragt von witek vor 2 Monaten

Letzte Antwort von cor-el vor 2 Monaten

User.js file does not apply

I've installed firefox with pacman on Linux, and I installed arkenfox. It did not work, I tried other user.js', none worked. I've also tried wiping my entire firefox root… (Lesen Sie mehr)

I've installed firefox with pacman on Linux, and I installed arkenfox. It did not work, I tried other user.js', none worked. I've also tried wiping my entire firefox root folder, then using arkenfox, but did not work.

Gefragt von deateaterOG vor 2 Monaten

Letzte Antwort von cor-el vor 2 Monaten

How to disable minimize on double click

Hello, recently I've been having issues where if misclick anywhere on the title bar (even in the small space between bookmarks) firefox will minimize/restore when I didn'… (Lesen Sie mehr)

Hello, recently I've been having issues where if misclick anywhere on the title bar (even in the small space between bookmarks) firefox will minimize/restore when I didn't want it too. How do I disable this in about:config?

Gefragt von s014g03s vor 4 Monaten

Letzte Antwort von jonzn4SUSE vor 3 Monaten

Video playback of high bitrate content from YouTube pauses and/or stutters.

I am having problems playing a particularly demanding video from YouTube (https://youtu.be/-W_nFlIAWFM) which runs at 4K/30 fps. It is a video taken from a drone flying … (Lesen Sie mehr)

I am having problems playing a particularly demanding video from YouTube (https://youtu.be/-W_nFlIAWFM) which runs at 4K/30 fps. It is a video taken from a drone flying over the Matterhorn in Europe. Here is my configuration: 1. I have a 200Mb connection to the internet and bandwidth testing confirms that it runs at a consistent 195 - 202 Mb. 2. I am using Firefox 126.0 on a dual boot machine running Ubuntu 22.04 LTS and Windows 10 (both OSes show similar stuttering and pausing). 3. My hardware is a Gigabyte Aorus Z690i motherboard with 32 GB of RAM and an Intel i5-12600K processor and an NVidia GeFroce RTX 2060 Super graphics card. I have tried disabling "Use hardware acceleration" in Firefox and also disabling all add-ons and rebooting. This hasn't resolved the problem. When I watch the same video in Google Chrome, it seems to display a much slower frame rate than 30fps but doesn't stutter. I have concluded that this video must be a super demanding one to render. There are many picture elements changing constantly. But is there a way to watch this at 4K/30fps with it playing smoothly and at the correct frame rate?

Gefragt von neutronJK vor 5 Monaten

Letzte Antwort von cor-el vor 5 Monaten

upgrade firefox Linux

i'm using peppermint 1.0 with Firefox browser 113.0.2. my bank says i need to upgrade to FFox 115 Linux. I can't access accts til i upgrade. i can't find 115 nor does the… (Lesen Sie mehr)

i'm using peppermint 1.0 with Firefox browser 113.0.2. my bank says i need to upgrade to FFox 115 Linux. I can't access accts til i upgrade. i can't find 115 nor does the system auto upgrade like it says using the "about firefox" ... this is as far as i can get. suggestions, anyone? here's a screencap. Gosh, the thought of returning to Windows makes me very uncomfortable. I see lots of folk are having this sort of problem.

regards

RH

Gefragt von rick harper vor 2 Monaten

Letzte Antwort von James vor 2 Monaten

Unable to download or upload files to some websites

For a few months now I've been having issues uploading firmware files to my QNAP server's website. I was trying to update the firmware, but it wouldn't allow the file to … (Lesen Sie mehr)

For a few months now I've been having issues uploading firmware files to my QNAP server's website. I was trying to update the firmware, but it wouldn't allow the file to even be uploaded. Would just get a general "error" with no help.

This past week a started having issues with 7digital.com not allowing me to download zipped music files. It kept giving an error about the oauth token not being passed through. (Error: Authorization failed for method <GET> and URL <http://media.geo.7digital.com/media/user/download/release>. Missing oauth_consumer_key)

Finally figured out that this is only happening in Firefox, Brave browser and other Chrome based browsers don't have the issue.

I've tried turning off the tracking and download protection in settings, but it didn't help. So, what's causing it?

Using Firefox 128.0.3 (64-bit) on Linux (NixOS).

Gefragt von mozilla623 vor 2 Monaten

Letzte Antwort von jonzn4SUSE vor 2 Monaten

Firefox doesn't connect to custom DNS provider when DNS-over-HTTPS is set to "Max Protection"

Hello guys, as in title - I use custom NextDNS set of rules on DNS-over-HTTPS. As of today, Firefox can't connect to the provider. AFAIK Troubleshoot Mode is also affecte… (Lesen Sie mehr)

Hello guys, as in title - I use custom NextDNS set of rules on DNS-over-HTTPS. As of today, Firefox can't connect to the provider. AFAIK Troubleshoot Mode is also affected. The other devices using NextDNS on my network work just fine and when I set the DNS to work system-wide as a kind of workaround, I don't get an issue. Same when I use other DNS-over-HTTPS options in the Firefox Preferences. Yesterday the problem didn't occur and I haven't performed any updates since yesterday - both Firefox and NetworkManager seem to be up to date.

Additional info: OS: EndeavourOS (Arch Linux) Firefox version: 129.0.2

If any other info is needed, I'll be happy to provide it to you.

Gefragt von erne.d vor 2 Monaten

Letzte Antwort von jonzn4SUSE vor 2 Monaten

Fix frustrating bookmarks desktop workflow

Hi Firefoxers, I've recently returned to using Firefox after using Chrome, Vivaldi, and Brave for a long time. Most Firefox things are better than these, but I find the b… (Lesen Sie mehr)

Hi Firefoxers, I've recently returned to using Firefox after using Chrome, Vivaldi, and Brave for a long time. Most Firefox things are better than these, but I find the bookmarks handling in Firefox extremely frustrating in comparison.

When clicking the bookmark star, the edit bookmark box pops up. The location dropdown gives me a list of 7 recent folders where I can store the bookmark. If I click "Choose" a tiny little box opens up and, in this extremely cramped space, I have to scroll through hundreds of folders and all their expanded subfolders to find the one I want.

One way other browsers solve this problem is by letting the user right click directly on their bookmarks folders and select "Add bookmark here", which then automatically saves URL, page title etc to that folder. But in Firefox, this just opens up a blank "Add Bookmark" box that doesn't contain any info about the current page, meaning you have to manually enter all the details.

So I'm interested in any help advice about:

a) Increasing the number of recent folders in the location drop-down to make it a lot more than 7.

b) Increasing the size of the "Choose" box so I can see the list of hundreds of folders more comfortable.

c) Stopping all folders being automatically expanded in the "Choose" box.

d) Making Firefox auto-add the details from a current page when clicking "Add Bookmark".

Any help would be appreciated!

Gefragt von alexjross vor 3 Monaten

Letzte Antwort von TechHorse vor 3 Monaten

Firefox uses up all CPU and heats up the laptop if a page contains one anigif

This is pretty much the same as https://support.mozilla.org/en-US/questions/801343 back in Firefox 3.x → 4 times. I do recall having the same problem then, and disabling … (Lesen Sie mehr)

This is pretty much the same as https://support.mozilla.org/en-US/questions/801343 back in Firefox 3.x → 4 times. I do recall having the same problem then, and disabling hardware acceleration did fix it back then, but it no longer does.

I’m currently on 115.3 ESR, but I’ve observed this for a while in Quantum (I don’t recall seeing it on Gecko with HW accel disabled).

Gefragt von mirabilos vor 3 Monaten

Letzte Antwort von jonzn4SUSE vor 3 Monaten

Firefox Nightly now demands a choice of container for new tab

Up until the latest Firefox Nightly release, I could click on the '+' to open a new tab and immediately start typing the URL. Now, however, I am required to select a cont… (Lesen Sie mehr)

Up until the latest Firefox Nightly release, I could click on the '+' to open a new tab and immediately start typing the URL. Now, however, I am required to select a container type, something that is useless to me. Is there a way to disable this?

UPDATE: Never mind, I found the setting for Enable Container Tabs, which needs to be deselected. Why is this an opt-out?

If a moderator wants to delete this post, go for it.

Gefragt von pccobbler vor 2 Monaten

Letzte Antwort von TechHorse vor 2 Monaten

How do I change the default app Firefox uses to open downloaded files?

Currently, when I try and open downloaded .txt files and .log files (that is, when I click on them directly from the download pop-up that appears at the top-right of the … (Lesen Sie mehr)

Currently, when I try and open downloaded .txt files and .log files (that is, when I click on them directly from the download pop-up that appears at the top-right of the browser), Firefox inexplicably opens Aegisub on my machine as the app to use. This is in contrast to when I open it directly from within my file browser, where it opens the Kate text editor, as suggested by the default app option in the permissions of the filetype.

How do I change the apps Firefox uses to open downloaded files? I've tried going into my settings and looking at applications, but .txt and .log don't appear, so I'm not quite sure what to do.

I'm on Kubuntu 22.04.3 LTS, using the Firefox deb package.

Gefragt von domojestic vor 5 Monaten

Letzte Antwort von jonzn4SUSE vor 5 Monaten