பயர்பாக்ஸ் ஆதரவு மன்றம்

I am a daily Firefox user and I never faced an issue like this before. I got my new laptop installed Firefox in the beginning it worked for weeks perfectly with the plug-ins I was using on my old PC as well. Everything was working very smoothly but nowadays I am facing issue where it takes too long to load any websites. Even it takes to load and complete the process to connect it to google.com around 10 seconds for sure. I refreshed it once then I tried same issue as before, reinstalled it again nothing worked out for me. I have pretty good internet setup on my home. Is there anyone who is facing the same problem these days or am I special? I want to overcome this problem quickly please help. Thanks.

Worked fine, but now typically shows , e.g., "no media to process in current tab." Or it seems to download but then gives error message "MP2T No data received." It had just worked fine with Firefox 67.0. DownloadHelper v. 7.3.6. Looks fine in the Add-ons/"manage your extensions" tab.

Ubuntu 18.04 LTS up-to-date daily. Last update FF Nightly 68 of 2019-june-9.

After a general "freeze" of VirtualBox witch crashed my Ubuntu, I restarted the PC and since I cannot start Nightly any more. I receive the message : Erreur d’analyse XML : entité non définie (NB : In english it would means +/- : "undefined entity") Emplacement : chrome://browser/content/browser.xhtml Numéro de ligne 50, Colonne 1 : <window id="main-window" </p>

I've tried using the option "-safe-mode" but it starts my FF 67 in place of Nightly 68. Without any saved tabs.

I know that I can install the latest Nightly over (or even remove) the current installation and be easily okay BUT frankly there is about 60 tabs and some "page mark" I'd like to be sure to get back before doing something extreme.

N.B.: The "Troubleshooting information" file below is FALSE as it is from my current FF and not the Nightly I cannot start anymore.