After several clean sweeps & reinstalls, Firefox is still very slow and gummy on my new macbook pro; can you please help me fix this?
I have been using Firefox since it came out. It's my favourite browser. For the past several months it has been loading web pages very slowly and seemingly getting hung up. I have cleared out all of the various types of stored data (cache, cookies, history, bookmarks ,etc.) and that hasn't worked. I have deleted Firefox from the computer entirely and gone for a fresh install. Still nothing. Can you please help me to get it back to it's lighting-fast self?
I run a 2016 Macbook Pro maxed out on RAM, solid state drive, retina display, with 10.10.5 installed. My Firefox version is 53.0 (64-bit), however, this has been happening across a couple of iterations of the software now. Please help!
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Is this with all sites, some, a few?
Start Firefox in Safe Mode by holding down the <Shift> (Mac=Options) key, and then starting Firefox. https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?
Try to disable IPv6 (check for other possible causes as well).
When multi-process windows in Firefox is enabled then Firefox will use more memory and may be less responsive. Try to disable multi-process windows in Firefox to see if that has effect.
You can disable multi-process windows in Firefox by setting these prefs to false on the about:config page.
- browser.tabs.remote.autostart = false
- browser.tabs.remote.autostart.2 = false
You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.