Firefox extremely slow to load pages or connect to Web sites after startup - Follow-Up
I see my original question is now archived at https://support.mozilla.org/en-US/questions/1380948#question-reply I never closed it because I didn't know if my last process could really fix the issue. It didn't, not always. Over the years, there have been times when the issue would still pop up, but not as often as before (2022 and earlier).
I have a feeling that during an issue, FF is having difficulty setting up shop after starting up. Consequently, it is spending more time before it could become prepared to connect to the Net. I've come up with another "solution," which is deleting (or moving out) xulstore.json in the profile folder after exiting or before starting FF. You can create a batch command or script to execute the process.
So far, FF is connecting immediately after startup.
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In that previous thread you wrote that your problem might be caused by not giving Firefox to close down properly before shutting down the computer.
Are you using "Clear history when Firefox closes" to clear data like the disk cache and in that case closing Firefox can take more time and Firefox will finish pending tasks on the next start?
- Settings -> Privacy & Security
Firefox will: "Use custom settings for history":
[X] "Clear history when Firefox closes" -> Settings - https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox
Thanks for the response.
"Firefox will finish pending tasks on the next start" That's something new.
I use custom settings for history.
I usually close FF only when shutting the computer at the end of the day. What I've been doing via batch command since 2022 (?) - because of the issue - is to allow 60 secs after exiting FF before shutting down the computer. This because I notice that if I exit FF and start it again immediately, FF would complain that it hasn't totally closed or a window would pop up asking whether to restart or quit FF. So, I give it time to properly close shop. It helps in minimizing occurrence of the issue on the next start up.
Before, I even created a batch command to help FF dump crash reports, if they existed, during exit, but now I just give it more time.