UI of Firefox is slow by typing or selecting the text (after update 33.0)
After the 33.0 update, I noticed that typing a backspace in any area on a Web page or even in the Firefox address bar is slow to echo, on a lag of 1 second. Also, by selecting the text typed (to remove a TI, etc.) by a click-and - drag quick selects the entire, but when I click in the dialog box to deselect, the part which has not been posted as selected initially, is selected for a moment before the string whole hilite selection disappears.
What makes the browser very cumbersome to use.
This seems to be new to 33.0. I tried to reset Firefox, but it does not solve the problem. No problem in IE 11.0, so I do not think that the malware. I have also to keep all s/w and run avast/zonealarm for safety. I've never had an infection of malicious software on this machine. Win7 Home Premium 64-bit, 8 GB of RAM. The use of resources is low, so not out of process control.
I have request the latest Microsoft "Patch Tuesday" updates 15/10, the same day that I updated to Firefox. This can complicate the diagnosis. But even once, IE was not affected, then, how the different Firefox UI for basic keyboard/screen I/O?
If there is an easy way to "downgrade" to the 32.0.3 prior revision, I could try to confirm. Help, please!
Start Firefox in Safe Mode to check if one of the extensions (Firefox/tools > Modules > Extensions) or if hardware acceleration is the cause of the problem.
- Put yourself in the DEFAULT theme: Firefox/tools > Modules > appearance
- Do NOT click on the reset button on the startup window Mode safe
- https://support.Mozilla.org/KB/safe+mode
- https://support.Mozilla.org/KB/troubleshooting+extensions+and+themes
You can check for problems with the sessionstore.js and sessionstore.bak files in the profile folder of Firefox that store session data.
- Help > troubleshooting information > profile directory: see file (Linux: open the directory;) Mac: View in the Finder)
- http://KB.mozillazine.org/Profile_folder_-_Firefox
- http://KB.mozillazine.org/Multiple_profile_files_created
Delete sessionstore.js will cause App Tabs and groups of tabs open and closed tabs (back) to get lost and you will have to re-create them (take note or bookmarks if possible).
Tags: Firefox
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