Firefox Community Forum

I am a Cacti developer and we are considering switching from FontAwesome Web Fonts to Tabler Web Fonts. However, on Firefox for Windows only, we are having a major slowdown when using the Tabler SVG based webfonts. The page load is first stalled by Firefox apparently loading all the Web Fonts, which would appear normal with any browser (though exceedingly slow on Firefox for some reason).

However, once the page is loaded, when going off tab to another browser tab, and then back to the Firefox tab that includes the Tabler webfonts, there is a 3 second delay before the tab switches. When we enable the performance analyzer, we find that the delay is almost 100% Reflow of the page, even though the page is static as this point (no changes) from the last time it was activated.

We do not have this issue on Firefox for Linux, MS Edge or any other Chromium browser, only Firefox on Windows. I'm using the latest version 134. Should I be opening a bug?

Observed:

I use Firefox 133 on Mint 22, I have 2 browser profiles. When I access Atlassian Confluence (any confluence page under atlassian.net), the page content is loaded, but then disappears and I get the following error at the top of the page: "This page was in the background for too long and may not have fully loaded. Try to refresh the page"

This only happens in one browser profile: in the other, all the pages open correctly and quickly. When I open a private tab using the problematic browser profile, again all the pages open correctly.

I have tried clearing all atlassian.net and atlassian.com cookies and data from the browser privacy settings, disabling all extensions, restarting the browser, even restarting the computer, but to no effect.

Expected: Confluence pages should open using any browser profile.

Reproducibility: 20+ out of 20+ attempts

Workarounds:

Temporarily use the other browser profile or a private tab, although that way I don't have the benefit of using browser history and if I kill the browser while using private tabs, private tabs will not be restored, so I lose track of what I was working on. I could use a different browser for confluence, but that has the same history problem and is generally senseless: Confluence should work correctly using any browser.

Notes:

I have seen similar issues 3-4 times before with Confluence, but it was always due to extensions, so disabling the problematic extension or configuring it to ignore anything related to Atlassian was sufficient. I would report this to Atlassian, but they'll just say "it works with a blank browser, so it's not our bug" and they're probably right. There's some kind of Atlassian-related state being preserved in the problematic browser profile, but I can't pinpoint it, so any help there is welcome.

For a project of mine, I had been researching the T84, but hours later, it turned into a google search tab, I can't press the back arrow to go back either. I don't know if my Firefox is corrupted or not, but if it is, how do I fix it?

For a while now (over a year), after using Firefox for YEARS, I am having LOTS of trouble logging into my Online Citibank. I am using 64bit version of Firefox. I go to citi.com and put my Id and Pw in, then signin. I see the page loading, with Citi webpage boxes showing Just as Shadow/Boxes for a moment or two, then I get a You Successfully Logged out!! Try again. Same. I believe that I have Sometimes gotten something about Logged Off for Inactivity. If I am able to QUICKLY Click on one of the Shadowed Boxes, I get ON my Citi webpage and am able to do my banking, without further problems. I have Cleared my Cache and Other suggested (from reading problems from other users) fixes, but NOT fixes. I do NOT have this problem on ANY OTHER websites! So, some conflict with Firefox and Citibank. I WAS able to login, with NO problems with Microsoft Edge. Didn't try Chrome.