Hi Kevini7:
What is your Windows operating system, and what solutions suggested in suej’s topic Lost bookmarks did you try? Some of those suggestions include:
- A full restart *** of your computer (e.g., Start | Power icon | Restart).
- The restore of a recent Firefox bookmark backup (created prior to losing your bookmarks) from Bookmarks | Manage Bookmarks | Import & Backup | Restore.
- Creation of new favicons.sqlite and places.sqlite files in your Firefox user profile (also see cbholzhauer’s 18-Dec-2025 post in NicolaB’s I accidentally cleaned Firefox bookmarks!).
I would advise you uninstall CCleaner v7.x first before trying any of these possible solutions and then roll back to CCleaner v6.39 (see nukecad’s 08-Oct-2025 How to Roll Back from v7 to v6.39) while you look for another disk cleaner to permanently replace CCleaner (see the discussion in Hmm888’s 30-Dec-2025 How much longer should we stay with version 6.39).
*** NOTE: If you have a Win 10 or higher OS and haven’t already done so, disable Fast Startup as instructed AdvancedSetup’s Malwarebytes tutorial Disable-Fast-Startup and then restart your computer a few times to ensure the setting change takes effect. The Fast Startup power option (also known as hybrid boot-up / hybrid shutdown) is enabled by default in Win 10 and Win 11 but it can sometimes interfere with the loading and initialization of drivers and services at boot-up and cause all sorts of unexpected glitches and problems with a variety of software programs.
Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.6809 * Firefox v147.0.2 * Microsoft Defender v4.18.25110.6-1.1.25110.1 * Malwarebytes Standard v5.4.7.229-148.0.5470 * Macrium Reflect Free v8.0.7783 * CCleaner Free Portable v6.39.11548 * HDCleaner Portable 64-Bit v2.095