How to read, inspect, and move an HTML bookmark file
Understand what a bookmark export contains, protect private links, and run a small migration test before moving the whole library.
Browsers & files / The essential guide
An HTML bookmark file is a portable directory of links. Inspect what it contains, preserve an untouched copy, and test the destination before a full migration.
A bookmark export and a saved webpage can both use HTML, but they have different jobs. The first lists destinations. The second attempts to retain a page itself. Mozilla documents Firefox’s HTML bookmark export for backup and transfer; do not treat that directory as downloaded article contents.
Start with a file you created or otherwise trust. Record its source browser or profile and date, then make a working copy. If you received unfamiliar HTML, inspect it as text before treating it as a page to open and interact with.
Check recognizable folders, special characters, and a few full addresses. Similar link titles can hide different destinations. Likewise, a private page may require authentication while its URL or title still reveals information you should not share.
For troubleshooting or collaboration, build a small collection of deliberately selected public links rather than distributing an entire personal export. Do not run unknown scripts or bookmarklets just because they appear in a list of familiar-looking entries.
Import a small set into the target browser and check folders, names, and addresses. Notice where the browser puts the imported material. Avoid repeated full imports while learning the process; they can make the result harder to understand.
Use the Chrome guide for the export-side workflow and the browser guide for migration planning. For the actual article text and images, follow saved website reading and verify a separate retained copy.
Keep this distinction clear
A successful import message is not proof that annotations, reading progress, or every browser-specific field transferred.
You may be able to inspect the link list offline, but that does not make the destinations’ article contents available. Test a separate saved copy for offline reading.
Not automatically. Parameters and fragments can affect the destination or identify a useful section. Review their purpose before changing the address.
Try a small experiment
Use a familiar, non-sensitive example. Test the result before changing your whole collection.
Keep an original file with its source profile and export date.
Review structure, titles, full URLs, and any information that should remain private.
Try a small transfer and practical retrieval before moving the whole collection.