Support » Plugin: LiteSpeed Cache » CSS optimization issues (Firefox Windows)

  • Resolved Qtwix



    Congratulation for this great Plugin, I really love it! 🙂 However, on one of my sites (, I have layout issues with Firefox on Windows when I use the CSS optimization options (CSS Minify, CSS Combine, CSS HTTP/2 Push). These layout issues do not appear in other browser or on the Mac. As these optimizations are very important for page speed and ranking, I’d really appreciate if there was a fix for that!

    Any suggestions?


    The page I need help with: [log in to see the link]

Viewing 5 replies - 1 through 5 (of 5 total)
  • Plugin Support LiteSpeed Lisa


    Hi, Qtwix

    I’m sorry to hear you’re having layout issues. Since the other browsers look fine, and it looks the the same for me on Windows Firefox and Chrome, it could be a browser cache issue. Have you tried clearing your Firefox cache?

    Hi Lisa

    Thanks for your reply. Yes, I already cleard the browser cache. Meanwhile I also un- and reinstalled Firefox, completely deleted the Firefox profile and even tried it with another user profile. The issue is still present and the layout completely messed up. The first page load after clearing the browser cache looks ok, but after reloading the page or switching to another page, the issue appears again. If I deactivate all the css optimizations, the page looks good again.

    Meanwhile I also tried it on another Windows computer with Firefox and the page looks good. This is very strange…

    Currently, I have no clue where to look further. This computer is a brand new HP laptop with nothing special on it. I only installed MS Office, Firefox and Sophos Home on it. If you have any suggestion, I’d really appreciate it!


    Plugin Support LiteSpeed Lisa


    Hmmm. Given that it works for me, and it works for you on another machine, there must be something specific about that browser on that machine – something that persists even after it’s been uninstalled and reinstalled.

    If it looks fine when you first clear the browser cache, but then gets messed-up on the next load of the page, it sounds like there is something odd about the way Firefox is caching on that laptop.

    It sounds like you don’t have Chrome on that new HP? I’d be curious how the site behaves on Chrome and Edge.

    Also, try comparing your settings between your two instances of Firefox. Maybe the HP laptop is defaulting to something odd that the other instances are not.

    One other thing to check: how does it behave when you open a private browsing / incognito tab?

    I hope something here is helpful. Let me know how it goes!

    Hi Lisa,

    Thank you very much! As of the yesterday’s great release of Firefox Quantum, the issue got removed and the page is looking correct now. Also, I did not have any issues neither with Edge nor with Chrome.

    So, finally all is fine now 🙂 !

    Best wishes…

    Plugin Support LiteSpeed Lisa


    So glad to hear it! Thanks for the update 🙂

Viewing 5 replies - 1 through 5 (of 5 total)
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